Formatter & Minifier
CSS Minifier
Online CSS Minifier is a free tool to help you minify the long CSS code into single-line minified code.
13 Free Tools
Formatters & Minifiers
Prettify tangled code so it reads cleanly, or strip it down to the smallest possible payload for production — for every language you work in.
Code arrives in two unhelpful states: minified into a single unreadable line, or bloated with whitespace you don't want shipping to users.
These tools move code cleanly in both directions — beautify to read and debug, minify to deploy — across every common language and data format.
Nothing is uploaded; formatting happens in your browser.
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.
Formatter & Minifier
HTML Minifier
Online HTML Minifier reduces the size of HTML files by minifying HTML code and improve website performance.
Formatter & Minifier
Javascript Minifier
Online Javascript Minifier or JS minifier is a free tool to minify your javascript code.
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.
Formatter & Minifier
SQL Formatter & Beautifier
Format and beautify SQL queries with customizable indentation, keyword case transformation, and intelligent formatting options
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.
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.
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.
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
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.
Beautify to read, minify to ship
The same file often needs both treatments at different stages. Use the JSON Formatter to indent and validate an API response you're debugging, then the JSON Minifier to compress it before it goes into a config or a request body.
The same pairing exists for markup and styles: beautify with the HTML Beautifier, then shrink the result with the CSS Minifier and Javascript Minifier when you're ready to deploy.
Beyond the big three
Formatting isn't only for JSON, HTML, and CSS. The SQL Formatter & Beautifier turns a wall of SQL into a readable query, and the YAML and XML tools validate structure while they indent — so a broken file fails here, not in your pipeline.
Why formatting matters
Readable code is reviewable code: consistent indentation makes diffs smaller and bugs easier to spot. Minified code is fast code: every byte you strip is a byte the browser doesn't download.
Doing both well, at the right moment, is a small habit that pays off on every commit.
Good to know
Frequently Asked Questions
What is the difference between beautifying and minifying?
Beautifying adds consistent indentation and line breaks to make code readable. Minifying removes all unnecessary whitespace and comments to make the file as small as possible for production.
Is my code uploaded to a server?
No. Every formatter and minifier here runs entirely in your browser, so your code never leaves your device.
Do these tools validate my code too?
The JSON, YAML, and XML tools flag structural errors as they format, so malformed input is caught immediately rather than downstream.
Will minifying change how my code behaves?
No. Minification only removes whitespace and comments; the logic and output stay identical, just in a smaller file.
Keep exploring