Dev Tools
JS Minifier (Basic)
The JS Minifier (Basic) removes comments and blank lines from a JavaScript file to shave down its size, while deliberately avoiding aggressive tricks like renaming variables or squashing tokens together, so the logic stays exactly as readable and predictable as the original. It suits developers who want a lighter file for quick deployment without risking a full minifier changing their code's behavior.
The whole process runs in your browser's JavaScript engine, so your source code is never sent to a server or third-party service — it's safe to paste in code from a private or proprietary project.
How to Use the JS Minifier (Basic)
- Open the JS Minifier (Basic) tool.
- Paste your JavaScript code into the input box.
- Click Minify to strip comments and blank lines.
- Copy the minified code.
Frequently Asked Questions
Will this rename my variables or squash multiple statements onto one line?
No — this is a basic minifier that only strips comments and blank lines; it deliberately leaves variable names and code structure untouched to avoid changing behavior.
Is it safe to minify code that contains string literals with slashes or comment-like text?
Yes, the tool is comment-aware and skips over string contents, so text inside quotes that happens to look like a comment isn't accidentally stripped.
Is my source code uploaded when I use this tool?
No, minification happens entirely in your browser, so your JavaScript never leaves your device.