JavaScript Code Minifier

Compress JavaScript code by removing comments, unnecessary whitespace, and line breaks.

About this tool

Shrink inline scripts and utility functions for production publishing.

How to use this tool

  1. Paste JavaScript code
  2. Click Run
  3. Copy minified output

How it works

Strips code comments and redundant whitespace tokens through static lexical regex transformations.

When to use this tool

  • Minifying inline bookmarklets or utility functions

Frequently asked questions

Does Tool Fly run or execute my JavaScript code?

Never! User code is processed purely as inert text and is never evaluated or executed.

Limitations

Lightweight minifier; for AST-level identifier mangling, use a full build bundler like Vite.

Privacy

Processed locally in memory.