HTML/CSS/JS Minifier

Paste markup, styles, or scripts and compress them instantly. Remove comments, redundant whitespace, and extra characters before deploying static assets.

Source code

Choose the language and paste your original code to begin.

Language

Minified output

Copy the optimized code or compare the size difference.

<!DOCTYPE html><html><head><title>Demo Page</title><link rel="stylesheet" href="/styles.css"></head><body><header><h1>All-in-One Online Tools</h1></header><script>console.log("Loaded");</script></body></html>

Original: 299 charsMinified: 208 charsSavings: 30.4%

Tip: For production builds, pair this tool with gzip/brotli compression on your server or CDN to maximize savings. Always run automated tests after minifying JavaScript to ensure no logic was removed unexpectedly.

Markdown to HTML Converter

Transform markdown content into clean HTML before you minify it.

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Online HTML Viewer

Preview markup changes in real time after minifying.

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Online JSON Formatter

Prepare configuration files with consistent formatting.

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HTML/CSS/JS Minifier

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