Code Minifier
Minify JavaScript, CSS, and HTML code
About the Code Minifier
Every byte of whitespace and every comment ships to the browser unless you strip it first. Code Minifier removes the comments, redundant spacing, and line breaks from JavaScript, CSS, and HTML, then shows you exactly how many bytes you saved.
It suits the quick optimization pass: shrinking an inline script or stylesheet before pasting it into a template, trimming a snippet for an embed, or just seeing how much fat a file is carrying. It works on three languages, and for JavaScript it is careful to preserve URLs while removing comments, so a // inside an http:// link does not accidentally eat the rest of the line.
Smaller files mean fewer bytes over the wire and faster page loads, which is why minification is a standard step before code ships to production — and seeing the byte count drop makes the benefit concrete.
How to Use the Code Minifier
- Choose the language of your code: JavaScript, CSS, or HTML.
- Paste your code into the "Code Input" box.
- Click Minify.
- Read the minified output along with the before/after byte sizes and the percentage saved, then Copy the result.
Why Use ToolForge’s Code Minifier
- It handles three languages — JavaScript, CSS, and HTML — each with rules tuned to that language's comment and whitespace conventions.
- For JavaScript it preserves URLs while stripping comments, avoiding the classic bug where removing // mangles a link.
- It reports the original and minified sizes with the percentage reduction, so you can see the payoff immediately.
- Minification runs entirely in your browser, so proprietary code is never uploaded.
Frequently Asked Questions
Is this a safe, full minifier like Terser or cssnano?
It is a lightweight minifier that removes comments and collapses whitespace, which is great for quick savings on simple snippets. It does not rename variables or perform the deep, AST-based transformations of build-tool minifiers, so for production bundles of complex code, use a dedicated build tool.
Will minifying change how my code behaves?
For well-formed code, removing comments and excess whitespace does not change behavior. Because this tool uses pattern-based minification rather than full parsing, review the output for unusual code (such as whitespace-sensitive template strings) before shipping it.
How much smaller will my file get?
It depends on how many comments and how much spacing the original contains — heavily commented, generously formatted code can shrink substantially, while already-compact code saves little. The tool shows the exact percentage so you can judge per file.
