Beautify JSON, minify HTML/CSS/JS, test regex patterns, compare code. Essential developer tools that work offline. No server uploads, instant processing.
Encode/decode Base64 for files, images, and text
Beautify code for readability
Compare code differences
Compress CSS for faster websites
Encode/decode HTML entities
Minify and beautify HTML, CSS, JavaScript code
Format, validate and beautify JSON with error detection
Convert Markdown to HTML
Test regex patterns
All tools run entirely in your browser. No files are uploaded to our server.
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Everything you need to know
Our code tools support JSON, HTML, CSS, JavaScript, XML, and SQL. You can format, minify, validate, and compare code across all these languages.
No. All code formatting, minification, and validation happens locally in your browser using JavaScript. Your code never leaves your device.
Yes. Once the tool page loads, all processing is done client-side using JavaScript. The tools work even if your internet connection drops mid-session.
Paste your CSS or JavaScript into our minifier tool. It removes whitespace, comments, and shortens variable names where possible, giving you production-ready minified code in seconds.
The JSON formatter takes raw or minified JSON and formats it with proper indentation, line breaks, and syntax highlighting. It also validates the JSON and highlights any syntax errors with line numbers.
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