JavaScript Formatter
Free JavaScript formatter online, pretty-print minified JS for debugging in your browser.
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How it works
Paste your content into the editor and get formatted, readable output instantly. Copy or download when ready.
About JavaScript Formatter
Informational only, not professional advice. Report an error.
Minified JavaScript is hard to read in logs, stack traces, and copied snippets. A JavaScript formatter (also called a beautifier) adds indentation and line breaks so you can scan functions, objects, and callbacks quickly.
Paste raw JS, click Format, and copy the cleaned output into docs, code reviews, or bug reports. The tool runs locally in your browser using a standard formatter, it does not execute your code.
Use the HTML Formatter or CSS Formatter when cleaning multi-language front-end snippets, or JSON Formatter when the payload is JSON, not JavaScript.
Quick tips
- Formatting may change quote style or semicolon placement, review before committing to a repo.
- Do not paste production secrets or API keys into any online formatter.
- Invalid syntax may still format partially, fix parse errors shown in the output.
This tool is part of the free Developer collection on FindMeTool. Explore more Developer tools or browse the full tool directory.