HTML/CSS/JS Minifier
Minify HTML, CSS, and JavaScript code online
About HTML/CSS/JS Minifier
Minify HTML, inline CSS, and inline JavaScript to reduce file size. Removes comments, collapses whitespace, and compresses inline styles and scripts. See the size reduction percentage instantly. Perfect for optimizing web pages before deployment. All processing happens client-side.
Use Cases
- Minifying HTML templates before email deployment
- Reducing page size for faster loading times
- Compressing inline CSS and JavaScript
- Optimizing HTML output from CMS systems
Frequently Asked Questions
What does minification do?
Minification removes unnecessary characters from code — comments, whitespace, line breaks, and formatting — without changing functionality. This reduces file size and improves load times.
Will minification break my code?
Minification should not break well-formed HTML, CSS, or JavaScript. However, always test minified output before deploying to production, especially for complex JavaScript.
How much space does minification save?
Typical savings range from 10-40% depending on the original formatting. Heavily commented and indented code sees the largest reductions.
Should I minify for production?
Yes. Minification is a standard optimization step. Most build tools (webpack, Vite, Next.js) do this automatically, but this tool is useful for one-off minification tasks.