240+ Free Tools

Free Online Tools

Make your work faster with 150+ free tools — JSON formatter, CSS generators, SEO utilities, converters, and more. Everything runs in your browser, nothing is stored.

240+
Free Tools
15
Categories
100%
Free Forever
Everything you need

All Free Tools

Pick a category or search above. All tools are free, no account required.

Generators

.gitignore Generator

Free online .gitignore generator. Search and combine Node, Python, PHP, Laravel, WordPress, macOS, Windows and more into a clean, de-duplicated file.

Developer Tools

.htaccess Generator

Generate Apache .htaccess files with HTTPS redirect, WWW handling, custom redirects, error pages, IP blocking, compression, caching, and security features

Cryptography & Security

AES Text Encryption

Free browser-based AES text encryption tool. Encrypt and decrypt messages with a passphrase using AES-GCM 256-bit and PBKDF2, entirely client-side and private.

Text Tools

ASCII Text Art Generator

Turn text into figlet-style ASCII art banners in your browser. Choose from many fonts, adjust spacing, and copy or download the result — 100% client-side.

Image Tools

Add Border to Image

Add a colored border or frame to an image in your browser, with adjustable width, color, and rounded corners. Live preview — 100% client-side, nothing uploaded.

PDF Tools

Add Page Numbers to PDF

Add page numbers to a PDF in your browser. Choose the corner, the style (1, 1/N, Page 1), and the starting number. Free, private, client-side — nothing uploaded.

Image Tools

Add Watermark to Image

Add a text watermark to an image online — tiled or positioned, with adjustable size, color, opacity, and rotation. Processed in your browser, nothing uploaded.

Calculators

Age Calculator

Age Calculator can accurately calculate your exact age based on your birthday. Years, months, and days will be presented as the determined age.

Cryptography & Security

Argon2 Hash Generator

Generate and verify Argon2 hashes with configurable parameters (memory, time, parallelism). Supports Argon2id, Argon2i, and Argon2d algorithms. Winner of Password Hashing Competition

Calculators

Aspect Ratio Calculator

Free aspect ratio calculator to find proportional width and height for 16:9, 4:3, 21:9, 1:1, 9:16, or custom ratios, plus a GCD ratio simplifier and live preview.

Fun & Misc

Astronomy Picture of the Day

Find most beautiful astronomy picture of the day, courtesy of NASA, with a single click of a button.

Image Tools

Avatar Maker

Create a simple avatar to use on social media profiles, online forum, site avatar etc with the free Online Avatar Maker tool.

Calculators

BMI Calculator

Free online BMI calculator. Enter your weight and height in metric or imperial units to see your Body Mass Index, weight category, and healthy weight range in your browser.

Generators

Barcode Generator

Generate barcode images and download high-quality graphics for scanners and readers. Enter your GTIN barcode number to begin.

Converters

Base32 Encoder & Decoder

Free online Base32 encoder and decoder. Convert text to RFC 4648 Base32 and decode it back live in your browser, with UTF-8 support and padding control.

Converters

Base58 Encoder & Decoder

Free online Base58 encoder and decoder using the Bitcoin and IPFS alphabet. Convert text to Base58 and decode it back live in your browser with UTF-8 support.

Converters

Base64 Encode and Decode

Use this extremely useful Base64 Encode and Decode tool to encode or decode your Base64 data, absolutely for free.

Converters

Base64 to Image

Decode a Base64 string or data URI back into an image and download it. Auto-detects PNG, JPG, GIF, and WebP — 100% client-side, nothing uploaded.

Cryptography & Security

Bcrypt Hash Generator

Generate secure bcrypt password hashes with adjustable cost factor. Includes password verification and salt extraction.

SEO Tools

Blogger Robots.txt Generator

Easily and instantly generate a Robots.txt file for your Blogger (Blogspot) blogs for SEO-friendly crawling.

SEO Tools

Broken Link Checker

Check a web page for broken links. We fetch the page, extract every link, and test each one's HTTP status — flagging 404s and server errors. SSRF-safe.

Domain & Server Tools

Bulk Domain Age Checker

Check domain age using the Bulk Domain Age Checker for free, up to 10 domains at once.

Domain & Server Tools

Bulk Domain Availability Checker

Use this tool to search domain availability in bulk, whether for your personal project, business, or anything else, all for free.

Generators

Bulk Hyperlink Generator

Easily create HTML hyperlinks code from a list of URLs and anchor texts with the free Bulk Hyperlinks Generator tool.

Fun & Misc

Business Idea Generator

Generate your next business idea or startup idea from thousands of available business ideas with a single generate button.

Generators

Business Name Generator

Free online business name generator. Enter keywords and a style to get around 20 brandable name ideas built from curated prefixes, suffixes, and patterns in your browser.

Calculators

CPM Calculator

Free online CPM calculator. Solve for cost per mille, total cost, or impressions from the other two values, with live results in your browser.

CSS & Design

CSS Animation Generator

Free visual CSS animation generator with live preview. Pick presets or build custom @keyframes, tune duration, timing, iterations, and copy the CSS instantly.

CSS & Design

CSS Border Radius Generator

Create perfect rounded corners with live preview. Supports individual corner control, preset shapes, and visual editing

CSS & Design

CSS Box Shadow Generator

Create professional CSS box shadows with live preview. Supports multiple layers, inset shadows, and preset effects

CSS & Design

CSS Clip-path Generator

Free CSS clip-path generator with a live preview. Pick preset shapes or drag vertices to build a custom polygon, circle, ellipse or inset, and copy the CSS.

CSS & Design

CSS Filter Generator

Free CSS filter generator with live preview. Adjust blur, brightness, contrast, grayscale, hue-rotate, sepia and drop-shadow sliders, try presets, and copy the CSS.

CSS & Design

CSS Flexbox Generator

Learn and create flexbox layouts with live visual preview. Supports all flexbox properties, preset layouts, and interactive editing

CSS & Design

CSS Gradient Generator

Create beautiful CSS gradients with live preview. Supports linear, radial, and conic gradients with multiple color stops

CSS & Design

CSS Grid Generator

Free visual CSS Grid generator with live preview. Set columns, rows, gaps, and alignment, then copy the generated grid CSS and HTML markup instantly.

Formatter & Minifier

CSS Minifier

Online CSS Minifier is a free tool to help you minify the long CSS code into single-line minified code.

CSS & Design

CSS Specificity Calculator

Free online CSS specificity calculator. Paste any selector to see its (a, b, c) specificity, a plain-English breakdown, and which of two selectors wins.

CSS & Design

CSS Text Shadow Generator

Free CSS text-shadow generator. Adjust offset, blur, color and opacity, stack multiple shadows, preview live, apply presets, and copy the CSS instantly.

CSS & Design

CSS Unit Converter

Free CSS unit converter for px, rem, em, pt, %, vw, vh, and ch. Set your root and element font-size and viewport, then convert between every CSS unit live.

Converters

CSV to JSON Converter

Convert CSV data to JSON format with auto-delimiter detection, smart data type parsing, and customizable options

Converters

Case Converter

Change text online between different letter cases, such as lower case, UPPER CASE, Sentence case, Capitalized Case, and aLtErNaTiNg cAsE.

Developer Tools

Chmod Calculator

Free online chmod calculator. Tick read, write, and execute boxes for owner, group, and other to get the octal value, symbolic string, and ready-to-run chmod command.

Image Tools

Circle Image Cropper

Crop an image into a circle or rounded square for avatars and profile pictures, in your browser. Transparent PNG output with live preview — 100% client-side.

Formatter & Minifier

Code Syntax Highlighter

Syntax-highlight code in 30+ languages and copy it as styled HTML for your blog or docs. Auto-detects the language — 100% client-side, nothing uploaded.

Fun & Misc

Coin Flip & Dice Roller

Free online coin flip and dice roller. Flip one or many coins and roll d4-d100 dice with fair crypto randomness, animation, tallies, and a roll history in your browser.

CSS & Design

Color Blindness Simulator

Free color blindness simulator. Upload an image or pick a color and see side-by-side previews for protanopia, deuteranopia, tritanopia, and achromatopsia.

CSS & Design

Color Contrast Checker

Free WCAG color contrast checker. Test foreground and background colors, get the contrast ratio, and see PASS/FAIL for AA and AAA accessibility.

CSS & Design

Color Converter

Convert a color between HEX, RGB, HSL, HSV, and CMYK instantly. Pick a color or type any format and copy the rest — 100% client-side, with a live preview.

CSS & Design

Color Palette Generator

Generate beautiful color palettes from base colors or images. Supports 6 harmony types, image color extraction, and multiple export formats

PDF Tools

Compress PDF

Compress a PDF to a smaller file size in your browser. Best for scanned and image-heavy PDFs. Choose a compression level — nothing is uploaded.

Fun & Misc

Countdown Timer

Free online countdown timer. Count down to any date and time or set a quick duration, with a live days-hours-minutes-seconds display and start, pause, and reset.

Developer Tools

Credit Card Validator

Check a credit card number with the Luhn algorithm and detect the brand (Visa, Mastercard, Amex, and more). Format check only — 100% client-side, nothing sent to any bank.

Developer Tools

Crontab Expression Generator

Generate and test cron expressions with visual interface. Features quick presets, human-readable descriptions, next run times calculator, and crontab entry examples

Calculators

Crypto Profit Calculator

Free crypto profit calculator. Enter buy price, sell price, quantity, and optional fees to see your total invested, total returned, net profit or loss, and ROI.

CSS & Design

Cubic Bezier Generator

Free cubic-bezier() easing curve generator with draggable control points, live animation preview, presets, and one-click copy for CSS transition and animation timing functions.

Domain & Server Tools

DNS Lookup

DNS Lookup tool is a tool that searches for all DNS records such as A, AAAA, CNAME, MX, NS, CAA, and TXT records for a particular domain name.

Calculators

Date Difference Calculator

Free online date difference calculator. Find the time between two dates in years, months, and days, plus total days, weeks, hours, and minutes in your browser.

Developer Tools

Diff Checker

Compare two texts or code blocks to find differences. Supports character, word, and line-by-line comparison with side-by-side and inline views

Calculators

Discount Calculator

Free discount calculator. Enter a price and a percentage or fixed amount off to see your savings, final sale price, and effective discount — with optional stacked deals.

Domain & Server Tools

Domain Age Checker

Domain Age Checker is the simplest tool to find the age of a domain by fetching the data directly from the WHOIS database, free of charge.

Domain & Server Tools

Domain Availability Checker

Use the Domain Availability Checker tool and register the domain that fits your audience and business.

Domain & Server Tools

Domain to IP

Resolve any domain name to its IPv4 (A) and IPv6 (AAAA) addresses. Paste a full URL and we'll use just the domain. Fast, SSRF-safe DNS lookup.

Calculators

Download Time Calculator

Free download time calculator. Enter a file size and connection speed to estimate how long a download will take, in a clear human-readable format.

Image Tools

Drawing Tool

Online Drawing Tool provides fast drawing experience for everyone to create digital artwork and download it as a JPG image.

Image Tools

EXIF Viewer & Remover

Free EXIF viewer and remover. View camera, GPS, and metadata in JPEG or PNG photos, then strip all EXIF data and download a clean copy — 100% in your browser.

Text Tools

Email Extractor

Extract all email addresses from any text or HTML. Remove duplicates, lowercase, sort, and choose the output separator — 100% client-side, nothing uploaded.

Developer Tools

Email Validator

Validate email address syntax and catch common domain typos like gmial.com. Check one address or a whole list at once — 100% client-side, nothing uploaded.

Text Tools

Fancy Text Generator

Fancy Text Generator will help you convert any text into hundreds of elegant, exotic, or stylish fonts which you can copy and paste into your webpages, email campaign, social media profiles, and any other platforms.

Image Tools

Favicon Generator

Generate favicons in multiple sizes (16×16 to 512×512) with customizable background, padding, and border radius. Download individually or as ZIP with HTML code. 100% browser-side processing

Text Tools

Find and Replace Text

Free online find and replace tool. Bulk find and replace text in your browser with case-sensitive, whole-word, and regex modes, live match counts, and capture groups.

Text Tools

Flip Text Generator

Turn Your Text Upside Down for Reasons That Are Your Own Business.

Calculators

Fuel Cost Calculator

Free fuel cost calculator. Enter trip distance, fuel efficiency, and fuel price in any units to estimate the fuel needed and total cost, one way or round trip.

CSS & Design

Glassmorphism Generator

Free glassmorphism generator with live preview. Adjust blur, transparency, tint, radius, border, and shadow, then copy frosted-glass CSS instantly.

Generators

Google Fonts Preview Tool

Write perfect content for both humans and search engines. Easily preview Google Fonts and find the best combination of Google Fonts pairing from 650+ best fonts with the Google Fonts Preview tool.

SEO Tools

Google SERP Location Changer

Check Google search rankings from any country, city, or region without a VPN. Free SERP location changer using UULE parameters

SEO Tools

Google SERP Preview

Generate eye-catching and SEO-friendly title tag and meta description with the free Google SERP Preview Tool.

Image Tools

Grayscale & Black-and-White Image

Convert an image to grayscale, pure black & white, or sepia in your browser. Adjustable intensity and threshold, live preview — 100% client-side, nothing uploaded.

Calculators

Gross Margin Calculator

Free online gross margin calculator. Enter cost and price, or cost and a target margin, to see gross profit, gross margin percent, and markup percent instantly.

Cryptography & Security

HMAC Generator

Generate and verify HMAC (Hash-based Message Authentication Code) for message authentication and integrity

Formatter & Minifier

HTML Beautifier

Free online HTML beautifier and formatter. Turn minified or messy HTML into clean, properly indented, readable markup right in your browser with no signup.

Generators

HTML Button Generator

HTML Button Generator creates HTML code to make a button that can be put into HTML. Customize your button style in real-time and grab the HTML code.

CSS & Design

HTML Color Picker

Pick and convert colors between HEX, RGB, RGBA, HSL, and HSLA formats. Features interactive canvas, color harmonies, shades, tints, and save functionality

Formatter & Minifier

HTML Decode

HTML Decode is an easy-to-use and free online tool to decode your encoded HTML directly from your browser less than a second.

Formatter & Minifier

HTML Encode

Encode your HTML code instantly on your browser using the free HTML Encode tool.

Converters

HTML Entity Converter

HTML Entity Converter tool will help you escape/convert special characters in text to HTML entities without having to manually doing it.

Formatter & Minifier

HTML Minifier

Online HTML Minifier reduces the size of HTML files by minifying HTML code and improve website performance.

Developer Tools

HTML Tag Stripper

Free online HTML tag stripper. Paste HTML and get clean plain text with all tags removed, plus options to decode entities, collapse whitespace, and keep line breaks.

Converters

HTML to Markdown

Instantly convert HTML to Markdown with one click. Save and share the Markdown code.

Converters

HTML to PDF Converter

Instantly convert HTML to PDF document with a single click, either by fetching directly from a webpage/URL or manually.

Domain & Server Tools

HTTP Header Checker

Check any URL's HTTP response headers and status code. See server, caching, security, and content-type headers, plus any redirects. SSRF-safe server-side fetch.

Developer Tools

HTTP Status Codes Reference

Free HTTP status codes reference. Search and filter every 1xx-5xx code with a plain-language explanation of what it means and when it is used, right in your browser.

Social Media Tools

Hashtag Counter

Free hashtag counter that counts hashtags in your caption live, lists the unique tags, flags duplicates, and warns you against platform limits, all in your browser.

Converters

Hex to RGB Converter

Instantly convert any Hex color code into its RGB values or vice versa with the Hex to RGB Converter tool.

Calculators

Hourly Rate Calculator

Free hourly rate calculator for freelancers. Enter your target income, billable hours, working weeks, expenses, and overhead to find the rate you need to charge.

Domain & Server Tools

IP Lookup

Find an IP address and its location with this free IP Lookup tool. Verify an IP address, and its geolocation if you're curious about it.

Image Tools

Image Blur

Blur an image online with an adjustable radius. Soften a background or obscure faces and text — processed in your browser, nothing uploaded.

Image Tools

Image Color Picker

Instantly pick color Hex and RGB color code from any image. Just upload an image and pick the color using Image Color Picker tool.

Converters

Image Converter & Compressor

Convert images between WebP, JPG, PNG, and AVIF in your browser and compress them with a quality slider. Batch convert, optionally resize, strip EXIF — 100% client-side, nothing uploaded.

Image Tools

Image Cropper

Free online image cropper. Crop photos in your browser with a draggable crop box, aspect-ratio presets, rotate and flip, then export to PNG, JPEG, or WebP.

Image Tools

Image Resizer

Resize images in your browser with custom dimensions, percentage scaling, or preset sizes. Supports JPEG, PNG, and WebP formats with quality control. 100% client-side processing

Image Tools

Image Sharpen

Sharpen a blurry photo online with an adjustable amount. Boost edge detail crisply in your browser — nothing is uploaded.

Image Tools

Image Splitter

Split an image into a grid of equal tiles in your browser. Perfect for Instagram carousels and grid posts, or slicing sprite sheets — 100% client-side, nothing uploaded.

Image Tools

Image to Base64 Converter

Convert images to Base64 encoding and decode Base64 back to images. Supports multiple output formats including Data URI, plain Base64, CSS background, and HTML img tag. 100% browser-side processing

PDF Tools

Images to PDF

Convert JPG and PNG images into a single PDF in your browser. Reorder pages, choose A4/Letter or fit-to-image — free, lossless, and 100% client-side.

Social Media Tools

Instagram Caption Spacer

Free Instagram caption spacer that keeps your line breaks and blank lines from collapsing. Format your caption in the browser and copy it ready to paste into Instagram.

Image Tools

Invert Image Colors

Invert an image's colors online to create a photo negative. Full or brightness-only inversion, processed in your browser — nothing uploaded.

Formatter & Minifier

JS & CSS Beautifier

Beautify and pretty-print minified JavaScript and CSS in your browser. Choose 2 spaces, 4 spaces, or tabs — 100% client-side, your code is never uploaded.

Formatter & Minifier

JSON Formatter

JSON Formatter was created to help developers with debugging, formatting, and having clear set of JSON data for easier development.

Formatter & Minifier

JSON Minifier

Online JSON Minifier tool will help you compress your JSON data by simply load your JSON and it will be instantly minified.

Converters

JSON to CSV Converter

JSON to CSV Converter

Converters

JSON to TypeScript Converter

Free online JSON to TypeScript converter that turns JSON objects and arrays into TypeScript interfaces or type aliases with recursive type inference.

Converters

JSON to XML Converter

Convert JSON data to XML format with customizable root elements, indentation, CDATA support, and attributes mode

Converters

JSON to YAML Converter

Free online JSON to YAML converter and YAML to JSON converter with auto-detect, validation, line-error messages, indent control, and download.

Developer Tools

JSONPath Tester

Free online JSONPath tester to run and debug JSONPath expressions against any JSON document live, with example queries, match count, and pretty results.

Cryptography & Security

JWT Decoder

Decode and analyze JWT (JSON Web Token) structure, claims, and expiration

Cryptography & Security

JWT Generator

Free browser-based JWT generator. Build and sign JSON Web Tokens with HS256, HS384, or HS512 using the Web Crypto API, entirely client-side and private.

Formatter & Minifier

Javascript Minifier

Online Javascript Minifier or JS minifier is a free tool to minify your javascript code.

SEO Tools

Keyword Density Checker

Analyze keyword density and word frequency in your content. See top single words and phrases, counts, and percentages for on-page SEO — 100% client-side, nothing uploaded.

Content Tools

Legal Document Generator

Generate Privacy Policy, Terms of Services, and Disclaimer pages for your website with this free Legal Document Generator tool.

Text Tools

Line Prefix & Suffix

Add prefix and suffix to each line of text with 12 quick presets including quotes, brackets, HTML tags, and more. Features live preview, line numbers, and custom separators

Developer Tools

Live Content Previewer Tool

Instantly retrieve a content from remote URL and show it nicely in a Facebook-like layout using the Live Content Previewer tool.

Calculators

Loan Calculator

Free online loan and EMI calculator. Enter loan amount, interest rate, and term to see your monthly payment, total interest, and full amortization schedule in your browser.

Content Tools

Lorem Ipsum Generator

This Lorem Ipsum Generator tool will help you generate dummy lorem ipsum text for every needs.

Cryptography & Security

MD5 File Checksum

Easily calculate the MD5 hash of any file instantly and directly on your browser. Avoid security flaw of a file, for free.

Cryptography & Security

MD5 Hash Decrypter

MD5 Hash Decrypter is a tool that automatically decrypts MD5 hash using dictionary of more than 1 trillion potential passwords.

Cryptography & Security

MD5 Hash Generator

Encrypt your password, credit card data, or any sensitive information using MD5 Hash Generator, all for free!

Formatter & Minifier

Markdown Formatter

Free client-side Markdown formatter powered by Prettier. Clean up headings, lists, tables, blank lines, and wrapping in your browser. Nothing uploaded.

Text Tools

Markdown Table Generator

Free online Markdown table generator. Build tables in a visual grid, set column alignment, import CSV or TSV, and copy clean aligned Markdown right in your browser.

Converters

Markdown to HTML

Convert Markdown to HTML. Paste or type Markdown text to view the HTML version. Copy or download the HTML code.

Image Tools

Meme Generator

Free meme generator. Add classic Impact top and bottom text to any image on canvas, with font size, colors, outline, and draggable captions — 100% in your browser.

PDF Tools

Merge PDF

Combine multiple PDF files into one in your browser. Reorder pages, merge unlimited files for free — 100% client-side, nothing uploaded.

SEO Tools

Meta Tags Extractor

Extract the most important meta tags data from any URL, including Facebook's open graph and Twitter's meta data, for free!

SEO Tools

Meta Tags Generator

Meta Tags Generator is a free tool that allows you to debug and produce HTML meta tag code for any kind of websites.

Fun & Misc

Morse Code Translator

Free online Morse code translator. Convert text to Morse code and Morse code back to text live in your browser, then play it as audio beeps or a flashing light.

Calculators

Mortgage Calculator

Free online mortgage calculator. Enter home price, down payment, rate, and term to estimate your total monthly payment including principal, interest, tax, insurance, and HOA.

Text Tools

NATO Phonetic Alphabet Translator

Free NATO phonetic alphabet translator. Convert text to Alfa, Bravo, Charlie code words instantly in your browser, and decode phonetic spelling back to text.

Converters

Number Base Converter

Free online number base converter. Convert numbers between binary, octal, decimal, and hexadecimal live, plus any base from 2 to 36, right in your browser.

Converters

Number to Words Converter

Convert numbers to words and words back to numbers in your browser. Spell out amounts for cheques and invoices, or parse written numbers into digits — handles negatives and decimals.

SEO Tools

On-Page SEO Checker

Audit a page's on-page SEO: title, meta description, H1, canonical, robots, Open Graph, image alt text, and word count. Fetched server-side, analyzed in your browser.

PDF Tools

Organize PDF Pages

Delete and reorder PDF pages in your browser, then save. Drag pages into any order and drop the ones you do not need — free, lossless, and 100% client-side.

PDF Tools

PDF Page Counter

Count the pages in a PDF and read its size and page dimensions instantly. Processed in your browser — nothing is uploaded.

PDF Tools

PDF to Image

Convert PDF pages to JPG or PNG images in your browser. Choose format and resolution, download every page — free, private, and 100% client-side via pdf.js.

Converters

PDF to Text Extractor

PDF to Text Extractor tool will convert PDF to text on the fly. The true online PDF to text extractor which is fast, safe, and free.

Formatter & Minifier

PHP Beautifier

Free online PHP beautifier and formatter powered by Prettier and the official PHP plugin. Reindent messy or minified PHP into clean, readable code in your browser.

Image Tools

PNG Gradient Background Generator

Generate a gradient background image and download it as a PNG image file for free using PNG Gradient Background Generator.

Cryptography & Security

Password Strength Checker

Free browser-based password strength checker. Test any password for strength, entropy, and time to crack with a live meter and tips, analyzed 100% privately on your device.

Calculators

Percentage Calculator

Free online percentage calculator. Work out what X% of Y is, what percent one number is of another, percentage increase, decrease, and change live in your browser.

Image Tools

Photo Collage Maker

Combine several photos into one collage in your browser. Grid, row, or stack layouts with adjustable gaps and background — 100% client-side, nothing uploaded.

Image Tools

Pixelate Image

Pixelate (mosaic) an image in your browser to censor faces, plates, or sensitive details. Adjustable pixel size with a live preview — 100% client-side, nothing uploaded.

Content Tools

Placeholder Image Generator

Free placeholder image generator. Create custom dummy images with any size, colors, text, and format (PNG, JPEG, WebP) drawn on canvas — 100% offline in your browser.

Fun & Misc

Pomodoro Timer

Free online Pomodoro timer with a circular countdown, auto-advancing focus and break sessions, a session counter, a gentle chime, and a live browser-tab countdown.

PDF Tools

Protect PDF

Password-protect a PDF in your browser with AES encryption. Set an open password and printing/copying permissions — the password never leaves your device. Free and private.

Generators

QR Code Decoder

Decode a QR code from an uploaded image or screenshot in your browser. Reads URLs, text, Wi-Fi, and more — 100% client-side, the image is never uploaded.

Generators

QR Code Generator

Create free QR Codes for URLs, text, and other content. This tool provides a quick and easy way to generate them.

Fun & Misc

Quote of the Day

Generate random quote of the day with a click of a button. Find most memorable quotes from notable person in the history.

Calculators

ROAS Calculator

Free online ROAS calculator. Enter ad revenue and ad spend to see your return on ad spend as a multiple and a percentage, plus ROI and break-even ROAS.

Fun & Misc

Random Anti-Boredom Activity

Generate anti-boredom activity with a single click of a button. Find the most useful activity you can do alone or with your friends.

Fun & Misc

Random Cat Facts

Generate random cat facts and find some funny and cute facts about cats along with their cute pictures with a single click of a button.

Fun & Misc

Random Decision Wheel

Free spin-the-wheel random picker. Enter options one per line, spin a colorful wheel of names on canvas, and land on a random winner — 100% in your browser.

Fun & Misc

Random Life Advice

Generate random life advice that you might find useful to improve the quality of your life with a single click of a button.

Generators

Random Number Generator

Generate random numbers in any range with cryptographic fairness. Pick how many, allow or forbid repeats, and sort the result — 100% client-side, nothing uploaded.

Fun & Misc

Random Programmer Jokes

Generate random programmer jokes with a single click of a 'Generate' button. Have fun with jokes only programmers can understand!

Content Tools

Readability Score Checker

Free online readability checker. Get Flesch Reading Ease, Flesch-Kincaid Grade Level, and Gunning Fog scores with word, sentence, and syllable counts live.

Domain & Server Tools

Redirect Checker

Trace a URL's full redirect chain hop by hop. See each status code (301, 302, 307), the final destination, and any redirect loops. SSRF-safe server-side fetch.

Developer Tools

Regex Tester & Explainer

Test and debug regular expressions with live matching, syntax highlighting, pattern explanation, and common regex examples. Supports all JavaScript regex flags

Formatter & Minifier

Remove Comments

Free string-aware tool to remove comments from JavaScript, TypeScript, PHP, Python, CSS, HTML, SQL, and more — safely, entirely in your browser.

Text Tools

Remove Duplicate Lines

Remove duplicate lines from text with options for case sensitivity, whitespace trimming, sorting, and keeping first or last occurrence. Includes statistics and duplicate analysis

Generators

Responsive Google Maps Embed

Generate responsive Google Maps embed code automatically using custom HTML and CSS code, easily and instantly for free!

Generators

Responsive Youtube Embed Generator

Instantly generate responsive Youtube video embed codes for you to use without writing a single line of code, for free!

Text Tools

Reverse Text Generator

Convert any text into reversed version of the original, flip it, flip the wording and many more using the Reverse Text Generator tool.

SEO Tools

Robots.txt Generator

Create a perfect robots.txt file for free with this simple tool and have search engines to properly crawl and index the important pages of your site.

Converters

Roman Numeral Converter

Free online Roman numeral converter. Convert numbers to Roman numerals and Roman numerals back to numbers live, with validation and a breakdown, in your browser.

Image Tools

Rotate & Flip Image

Rotate an image 90° or 180° and flip it horizontally or vertically in your browser. Live preview, keeps transparency — 100% client-side, nothing uploaded.

PDF Tools

Rotate PDF

Rotate PDF pages 90° or 180° in your browser — all pages or just the sideways ones. The new orientation is saved into the file. Free, private, client-side.

Formatter & Minifier

SCSS Beautifier

Free online SCSS beautifier and Sass formatter. Reindent messy or minified SCSS into clean, nested, readable code in your browser with Prettier. No uploads.

SEO Tools

SEO Content Analysis

SEO Content Analysis will help you improve your SEO content and get improvement recommendations against keywords, 100% free.

Cryptography & Security

SHA-1 Hash Generator

Generate SHA-1 hashes for legacy compatibility. ⚠️ SHA-1 is deprecated - use SHA-256 or higher for security

Cryptography & Security

SHA-256 Hash Generator

Generate SHA-256 hash from any string instantly on the fly within less than a second with the free SHA256 Hash Generator.

Cryptography & Security

SHA-384 Hash Generator

Generate SHA-384 cryptographic hashes for text and files with support for multiple algorithms

Cryptography & Security

SHA-512 Hash Generator

The SHA512 Hash Generator is a great tool to instantly generate unique 512-bit (32-byte) signature for any text for free.

Formatter & Minifier

SQL Formatter & Beautifier

Format and beautify SQL queries with customizable indentation, keyword case transformation, and intelligent formatting options

Domain & Server Tools

SSL Certificate Checker

Check SSL/TLS certificate details, validity, expiration, security grade, and certificate chain for any domain.

Developer Tools

SVG to CSS Encoder

Free online SVG to CSS encoder. Convert raw SVG markup into an optimized, URL-encoded data URI for background-image, plus Base64 and HTML img src variants, in your browser.

Converters

SVG to PNG Converter

Convert SVG to a crisp PNG (or JPG) at any size in your browser. Upload a file or paste the markup, pick a width and background — 100% client-side, nothing uploaded.

Calculators

Sales Tax Calculator

Free online sales tax calculator. Add tax to a net price or extract tax from a gross total, and see the tax amount and totals instantly in your browser.

SEO Tools

Schema Markup Generator

Schema Markup Generator tool will help you create perfect structured data for any webpage in seconds by generating FAQ, reviews, How-to, article, Local Business, and may other JSON-LD markups.

SEO Tools

Slug Generator

Turn any title into a clean, SEO-friendly URL slug. Dash or underscore, remove stop words, strip numbers, transliterate accents, and slugify titles in bulk — 100% in your browser.

Social Media Tools

Social Media Character Counter

Free social media character counter. Paste your post and instantly see the live character count, word count, and how it fits every major platform limit in your browser.

Social Media Tools

Social Media Image Resizer

Resize and crop an image to exact platform sizes — Instagram, Facebook, X, YouTube, LinkedIn, Pinterest, TikTok. Cover or contain, processed in your browser.

Generators

Social Share Link Generator

Automatically generate top 10+ social media share links with a click including Facebook, Twitter, Linkedin, WhatsApp, and more for 100% free!

PDF Tools

Split PDF

Split a PDF in your browser: extract page ranges into one file or burst every page into separate PDFs. Free, lossless, and 100% client-side — nothing uploaded.

Fun & Misc

Stopwatch, Countdown Timer & World Clock

An online stopwatch with laps, a countdown timer with a chime, and a live world clock — all in one, running entirely in your browser with nothing to install.

Developer Tools

String Escape / Unescape

Free online string escape and unescape tool. Escape strings for JSON, JavaScript, HTML, XML, CSV, SQL, unicode \uXXXX, and backslash contexts right in your browser.

Cryptography & Security

Strong Password Generator

Gerate a very strong password only with a few clicks with the free online Strong Password Generator.

Domain & Server Tools

Subnet Calculator

Free IPv4 subnet calculator. Enter an IP and CIDR prefix or netmask to instantly get network and broadcast addresses, host range, subnet mask, wildcard, and binary.

Converters

Subtitle Converter (SRT to VTT)

Free online subtitle converter. Convert subtitles between SRT and WebVTT (VTT) both ways in your browser — fix timestamps, headers and cue numbers. No upload.

Cryptography & Security

TOTP Code Generator

Free browser-based TOTP code generator. Turn a Base32 secret into time-based one-time passwords (2FA codes) with a live countdown, entirely client-side and private.

Generators

Test Data Generator

Generate realistic fake test data — names, emails, phones, addresses, companies, and more — as a table, JSON, CSV, or SQL inserts. 100% client-side, nothing real, nothing uploaded.

Text Tools

Text Repeater

Repeat any text a set number of times with your choice of separator — new line, space, comma, or custom. Optionally number each line. Free, private, and in your browser.

Text Tools

Text Sorter

Free online text sorter. Sort lines alphabetically, numerically, naturally, by length, or reverse and shuffle them in your browser with case, trim, and blank-line options.

Converters

Text to Binary Converter

Text to Binary Converter is a very simple tool to help you convert any text into binary or vice versa, with super instant process.

Developer Tools

Text to Hex Converter

Free online text to hex converter. Encode text to hexadecimal bytes or decode hex back to text, with UTF-8 support, spacing options, and 0x or backslash-x styles.

Text Tools

Text to Speech Reader

Free online text to speech reader. Paste text and have it read aloud in your browser with natural voices, adjustable speed and pitch. No signup, private.

Converters

Timezone Converter

Free online timezone converter. Convert a date and time between any two time zones with correct UTC offsets and daylight saving, plus a live world clock.

Calculators

Tip Calculator

Free tip calculator and bill splitter. Enter a bill, pick a tip percentage, and split it between any number of people with per-person totals, instantly in your browser.

Fun & Misc

Today in History

Discover what happened today in history throughout the world, including key events in crime, politics, war, etc.

Generators

Top Notification Bar Generator

Easily and instantly create a highly customizable top fixed bar with the free Top Notification Bar Generator tool.

Social Media Tools

Twitter Thread Splitter

Free online Twitter thread splitter. Turn a long post into a numbered thread of tweets that fit the character limit, split on word boundaries, in your browser.

Formatter & Minifier

TypeScript Formatter

Free client-side TypeScript formatter powered by Prettier. Beautify messy or minified TS with consistent indentation, quotes, and print width in your browser.

Fun & Misc

Typing Speed Test

Free online typing speed test. Measure your WPM and accuracy in the browser with live per-character feedback, 15s, 30s, and 60s timed modes or a full-passage run.

Converters

URL Encoder and Decoder

URL Encoder and Decoder is a very simple tool to help you convert any URL into a percent encoded string.

Developer Tools

URL Parser

Parse and analyze URLs with detailed breakdown of all components including protocol, host, path, query parameters, and hash. Features JSON output and individual component copying

Text Tools

URLs Extractor Tool

Get all URLs from a website online using URLs Extractor Tool. Extract URLs from any website instantly for free.

SEO Tools

UTM Tag Builder

Easily tag your URLs based on campaign with this easy-to-use UTM Tag Campaign Builder & Generator.

Developer Tools

UUID / GUID Generator

Generate UUIDs (v1, v4) and GUIDs with bulk generation, validation, and parsing. Supports multiple formats including standard, compact, uppercase, braces, and URN

Developer Tools

Unicode Character Lookup

Free online Unicode character lookup. Inspect any text or code point to see the U+ code point, decimal, UTF-8 bytes, UTF-16 units, HTML entity, and JS escape.

Converters

Unit Converter

Free online unit converter for length, weight, temperature, area, volume, speed, time, and digital storage. Live bidirectional conversion in your browser.

Developer Tools

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates. Features live current timestamp, batch conversion, timestamp calculator, and multiple format outputs

Domain & Server Tools

User Agent Parser

Free User Agent parser. Paste any User-Agent string to instantly detect the browser, version, rendering engine, operating system, device type, CPU, and bots in your browser.

SEO Tools

Video Schema Markup Generator

Video Schema Markup Generator is a tool that automatically fetches detailed information from a Youtube video URL and generate JSON-LD and microdata structured data markups.

Domain & Server Tools

WHOIS Lookup

WHOIS Lookup tool is a tool that helps you find out all you need to know about a domain, from creation date to domain's owner, all for free.

PDF Tools

Watermark PDF

Add a text watermark like CONFIDENTIAL or DRAFT to every PDF page in your browser. Control text, color, size, angle and opacity. Free, private, client-side.

SEO Tools

Web Cache Viewer

Web Cache Viewer is a free tool to view a cached version of a web page, both from Google Cache and Wayback Machine.

Domain & Server Tools

What Is My IP

Instantly see your public IP address, plus your browser, operating system, screen, language, and the request headers our server received. Nothing is stored.

Generators

WhatsApp Chat Link Generator

Generate a WhatsApp chat link to send to a specific number with a personalized message and share it with your audience, customers, or online networks, instantly and for free!

Text Tools

Whitespace Cleaner

Clean up messy text: remove line breaks, extra spaces, and blank lines, convert tabs, or strip every space. Stack the options and clean in one pass — private, in your browser.

Generators

WiFi QR Code Generator

Free WiFi QR code generator. Create a scannable QR code so phones auto-join your network — enter SSID, password, and security type, all in your browser.

Text Tools

Word Counter

Word Counter tool is the perfect tool to count the number of word, character, sentence, paragraph, and top keyword from a set of text in real-time.

Generators

WordPress Child Theme Generator

WordPress Child Theme Generator is a free tool to create a custom child theme for your currently active theme without having to write a single code.

Formatter & Minifier

XML Formatter & Beautifier

Free online XML formatter, beautifier, and validator. Check XML well-formedness and pretty-print clean, indented XML right in your browser with no signup.

SEO Tools

XML Sitemap Generator

Create the perfect XML Sitemap file for your site to make it easier and faster for search engines such as Google and Bing to crawl.

SEO Tools

XML Sitemap URL Extractor

Extract all URLs from XML sitemaps instantly. Load any sitemap and export URLs to CSV or TXT format.

Converters

XML to JSON Converter

Free online XML to JSON converter. Paste XML and get pretty-printed JSON with attributes, text nodes, and repeated elements handled correctly, right in your browser.

Formatter & Minifier

YAML Formatter & Validator

Free online YAML formatter and validator. Validate YAML syntax, catch line and column errors, and pretty-print clean, indented YAML in your browser.

Social Media Tools

YouTube Timestamp Link Generator

Free YouTube timestamp link generator. Paste a video URL or ID and a time, and get a shareable link that starts the video at the exact moment, all in your browser.

Generators

Youtube Subscribe Link Generator

Generate a Youtube channel subscribe link that shows popups if people click it for free with the Youtube Subscribe Link Generator.

Image Tools

Youtube Thumbnail Downloader

Free YouTube Thumbnail Downloader tool allows you to instantly download any YouTube thumbnail with just a few clicks.

Developer Tools

cURL to Code Converter

Convert cURL commands into code for 15+ programming languages instantly. Perfect for developers who need to translate API requests from cURL format into their preferred programming language.

SEO Tools

hreflang Tag Generator

Generate valid hreflang tags for multilingual and multi-regional SEO. Add localized URLs and get ready-to-use HTML or XML sitemap annotations, free and in your browser.

Cryptography & Security

htpasswd Generator

Free browser-based htpasswd generator. Create Apache and nginx .htpasswd entries with bcrypt, SHA-1, or plaintext, then copy or download the file.

Free Online Tools for Developers, SEO Practitioners & Content Creators

Walter Pinem Tools is a free collection of 200+ browser-based utilities for web development, SEO, security, design, and content creation.

Every tool runs entirely in your browser — no registration, no CAPTCHA, and nothing you enter is sent to a server.

Open a tool, use it, and get on with your day.

What can you do with these tools?

Quite a lot — and all in one place, instead of scattered across a dozen different sites.

Format and validate code with the JSON Formatter, YAML Formatter, and XML Formatter.

Design faster with the CSS Grid Generator, CSS Animation Generator, and Cubic Bezier easing editor.

Sharpen your SEO with the Meta Tags Generator, Schema Markup Generator, and hreflang Tag Generator.

Work with documents using the Merge PDF, Split PDF, and Protect PDF tools — no upload required.

On the security side you can test password strength, encrypt text with AES, or generate 2FA codes, all without a single byte leaving your device.

Why are these tools completely free?

They were built for personal use — to automate repetitive tasks and skip the five-tabs-and-a-subscription routine.

Sharing them publicly was the obvious next step. There is no freemium tier and no "upgrade to unlock."

They are free for personal and commercial use alike, with no strings attached.

How do these tools protect your privacy?

Wherever the task allows, each tool processes your data entirely on your device using client-side JavaScript.

Your passwords, hashes, files, and text stay local — nothing is uploaded, logged, or stored.

Tools like the EXIF Viewer & Remover and Image Cropper even edit your images in the browser, so a photo you drop in never touches a server.

In a world where most "free" tools quietly harvest your data, that privacy is the whole point.

What categories of tools are available?

The collection is organized into thirteen categories, each with its own dedicated hub page, so you can find what you need quickly:

  • SEO Tools — meta tags, schema markup, robots.txt, XML sitemaps, SERP preview, hreflang, and on-page audits.
  • Content Tools — Lorem Ipsum, placeholder images, and calculators for age, dates, percentages, aspect ratios, and loans.
  • Formatters & Minifiers — HTML, CSS, JS, JSON, XML, YAML, and SQL formatting, beautifying, and minifying.
  • Cryptography & Security — MD5/SHA hashing, bcrypt, HMAC, AES encryption, JWT, TOTP, htpasswd, and password tools.
  • Domain & Server Tools — WHOIS, DNS, IP lookup, SSL checker, HTTP headers, redirects, and subnet calculator.
  • CSS & Design — gradient, shadow, grid, flexbox, animation, glassmorphism, clip-path, filters, and color tools.
  • Image Tools — resize, crop, rotate, convert, EXIF removal, favicon, avatar, meme, and placeholder generation.
  • Converters — Base64/32/58, HEX, number bases, JSON↔YAML/XML/TypeScript, units, and Roman numerals.
  • Generators — QR codes, barcodes, .gitignore files, social and WhatsApp links, and legal page templates.
  • Text Tools — find & replace, sort, dedupe, case convert, Markdown tables, and text transforms.
  • Developer Tools — regex tester, JSONPath, diff, cron, UUID, HTTP status codes, Unicode lookup, and string escaping.
  • PDF Tools — merge, split, convert, rotate, add page numbers, watermark, organize, and password-protect PDFs.
  • Fun & Misc — Pomodoro timer, typing test, decision wheel, dice roller, Morse code, and more.

Frequently Asked Questions

Are these tools really free to use?

Yes. All 200+ tools are completely free with no usage limits, no registration, and no payment — for both personal and commercial use. There is no pricing page attached to any of them.

Do I need to create an account?

No account, no login, and no email confirmation. You open the tool, use it, and leave.

Is my data safe when using these tools?

For every tool that can run locally, processing happens in your browser, so no data is transmitted to any server. This covers password generation, encryption, file checksums, image editing, and more. The few tools that must fetch a live URL — such as WHOIS or header checks — do so through a request hardened against abuse, and your input is not stored.

What devices and browsers are supported?

Every tool is mobile-friendly and works on modern browsers including Chrome, Firefox, Safari, Edge, and Opera. No plugins or extensions are required.

How many tools are available, and how are they organized?

There are currently 200+ tools across thirteen categories, from SEO and cryptography to image editing, converters, PDF utilities, and developer tools. Each category has its own hub page listing every tool in it, and new tools are added regularly.

What is the best free tool to generate schema markup?

The Schema Markup Generator produces valid JSON-LD structured data for Article, Product, Organization, FAQ, HowTo, and other types — ready to paste directly into your page's <head>.

What is the difference between MD5 and SHA-256 hashing?

MD5 produces a 32-character hash and is fast but unsuitable for security-critical use because of known collision weaknesses. SHA-256 produces a 64-character hash and is far more secure. Use the MD5 Hash Generator for checksums and legacy compatibility, and the SHA-256 Hash Generator for anything security-related.

Can I use these tools offline?

Because most tools run client-side, they keep working once the page has loaded even if your connection drops. A few that fetch external data — such as WHOIS and DNS lookups — need a connection, but formatters, generators, converters, and calculators do not.

New tools are added regularly. If something you need isn't here yet, it probably will be soon.

About These Tools

Made for Makers

These tools are built and maintained by Walter Pinem — a developer, SEO consultant, and blogger from Indonesia. All tools are completely free, no sign-up required, and will always be.

240+
Free Tools
15
Categories
100%
Free Forever
40K+
Plugin Users