Paste JavaScript and choose Format for readable indentation or Minify for a compact script. Both modes run on your device on the same input—useful when you alternate between debugging tidy code and shipping smaller files.

How to use this tool

Paste your script into the JavaScript input area. Choose Format for readable code with your preferred indent, or Minify for a compact version. Copy the output when done—you can switch modes on the same input without reloading.

Worked example

Example: `function add(a,b){return a+b}` formats to a multi-line function with indented braces. Minify collapses it back to a single line for smaller file size.

How it works

Paste JavaScript and toggle between Format and Minify in a single interface. Format uses js-beautify for readable indentation and line breaks. Minify applies a conservative pass that removes comments and safe whitespace without renaming variables or mangling code.

Limitations

Minify is a conservative whitespace pass—not Terser, UglifyJS, or a bundler. For format-only or minify-only workflows, use JS Beautifier or JS Minifier.

Privacy and file handling

Your data stays on your device and is not uploaded.

FAQ

Frequently asked questions

How is this different from JS Beautifier or JS Minifier?

This page combines Format and Minify in one tool. JS Beautifier formats only; JS Minifier compresses only with size stats.

Is minify a full production bundler?

No. Minify removes comments and safe whitespace—it does not mangle names, tree-shake, or bundle modules like Terser or Webpack.

Is my JavaScript stored?

No. Everything stays on your device.

Page last reviewed: March 1, 2026

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