What does this tool use to format JavaScript?

Prettier's Babel parser, running entirely in your browser — it handles modern JavaScript syntax including JSX, optional chaining, and more.

This isn't a true minifier — safely collapsing JavaScript onto fewer lines requires full semicolon-insertion-aware parsing, which is out of scope here. Instead it produces a compact form: comments and blank lines removed, line breaks kept intact so nothing breaks. For real production minification, use a dedicated bundler/minifier.

Is my code sent to your servers?

No. Formatting runs entirely in your browser.

JavaScript Formatter

Format and beautify JavaScript with adjustable indentation — click Format or Minify to run it.

Processed locally in your browser — nothing is sent to a server.

Indent size

Use tabs (instead of spaces)

Remove comments

Input

4 lines56 charsValid

Output

0 lines0 charsValid

About this tool

Paste JavaScript and click Format for consistently indented, readable code, or Minify for a compact form with comments and blank lines removed (see the FAQ for what Minify does and doesn’t do here).

Frequently asked questions

What does this tool use to format JavaScript?: Prettier's Babel parser, running entirely in your browser — it handles modern JavaScript syntax including JSX, optional chaining, and more.
What does Minify do?: This isn't a true minifier — safely collapsing JavaScript onto fewer lines requires full semicolon-insertion-aware parsing, which is out of scope here. Instead it produces a compact form: comments and blank lines removed, line breaks kept intact so nothing breaks. For real production minification, use a dedicated bundler/minifier.
Is my code sent to your servers?: No. Formatting runs entirely in your browser.

Privacy

Every conversion runs in your browser. Nothing you paste here is sent to WebCodeIn’s servers, logged, or stored.

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