Puma Code Minifier

Minify JavaScript, CSS, and HTML code instantly — no signup, no upload, no limits. Remove comments, whitespace, and unnecessary characters to shrink file size. See exact before/after sizes and savings percentage. Everything runs in your browser — your code stays private.

What does a code minifier do?

A code minifier removes unnecessary characters from source code — comments, whitespace, newlines, and formatting — without changing functionality. This reduces file size for faster page loads and lower bandwidth costs.

What languages are supported?

JavaScript (full AST-based minification with variable shortening and dead code removal), CSS (removes comments, collapses whitespace, optimizes rules), and HTML (removes comments, collapses whitespace between tags).

How much smaller will my code be?

Typically 30-70% smaller depending on original formatting. Well-commented code with lots of whitespace sees the biggest reductions.