Code Formatters and Minifiers Every Developer Needs
Format HTML, CSS, JS, SQL, and JSON for readability. Minify for performance. Free browser-based developer tools with no installation.
Write Cleaner Code and Ship Faster Pages
TL;DR: Messy code slows debugging. Bloated code slows websites. Free formatters and minifiers clean up HTML, CSS, JavaScript, SQL, and JSON in seconds.
I inherited a codebase with no indentation, cryptic variable names, and CSS nested six levels deep. Running it through a formatter made the bugs obvious in ten minutes.
Format Your Code
HTML Formatter, CSS Formatter, JS Formatter, SQL Beautifier.
JSON Beautifier and JSON Validator. Format converters: JSON to CSV, CSV to JSON, JSON to XML, XML to JSON, YAML to JSON.
Minify Your Code
HTML Minifier, CSS Minifier, JS Minifier. For images, see compressing images for faster websites.
Protect Your Code
JS Obfuscator makes JavaScript difficult to reverse-engineer.
Developer Utilities
HTML Code Editor, Code Collaboration, Source Code Downloader. My SEO audit guide covers code quality and rankings.
Encoding tools: HTML Entity Encode/Decode, URL Encoder/Decoder, Base64 to Text/Text to Base64, ROT13 Encoder/Decoder.
Color tools: RGB to Hex, Hex to RGB, Wheel Color Picker. More in free text tools.
Key Facts
- Minified CSS saves 20% to 40% in file size
- Minified JS + GZIP can reduce transfer size by 70%+
- Proper formatting reduces debugging time significantly
- JSON validation catches syntax errors before runtime
- JS obfuscation raises difficulty but isn't true security
- Base64 encoding embeds small assets inline
- Format converters eliminate manual conversion scripts
FAQ
Format or minify first?
Format during development, minify for production.
Will minification break my JS?
Rarely. Test minified output before deploying.
Safe for sensitive data?
Tools run in your browser. Data isn't sent to servers.
Build pipeline use?
These are for manual tasks. For automation, use npm packages like Terser and cssnano.