formatter

JavaScript Beautifier

Beautify messy JavaScript snippets or minify them into a compact one-line version with adjustable indentation.

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This is a practical formatter for everyday snippets. It is not a full JavaScript parser, but it handles common code well.

How to use

How to tidy JavaScript snippets or compress them into a smaller payload

  1. 1 Paste JavaScript into the input area, including inline browser scripts, utility functions, API responses, or copied bundle fragments.
  2. 2 Pick an indentation style that matches your preference or project standards, such as two spaces, four spaces, or tabs.
  3. 3 Use Beautify to add line breaks and indentation around braces, statements, and common control-flow blocks.
  4. 4 Use Minify to collapse comments and extra whitespace when you want a compact version for quick sharing or embedding.
  5. 5 Copy the output when it looks correct, then test it in your project if the source contains advanced syntax that may need a full parser-aware formatter.

JavaScript copied from browser consoles, third-party widgets, or build output is often hard to read because everything arrives on one line. A lightweight beautifier makes that code easier to inspect by reintroducing the structure that developers naturally look for: braces, statement boundaries, and indentation depth. That helps when you are debugging snippets, comparing functions, or trying to understand minified code quickly without opening a full IDE.

The reverse direction is useful too. Minifying simple JavaScript removes comments and collapses spacing so you can create a compact version for demos, test fixtures, or documentation examples. This tool is intentionally practical rather than parser-complete, which makes it fast for everyday browser use. For highly advanced syntax or production build pipelines, a dedicated formatter may still be the better final step.

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