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JavaScript Formatter
Format JavaScript or TypeScript instantly with clean indentation, readable spacing, and consistent line breaks.
How to use this tool
- Paste JavaScript or TypeScript into the input editor.
- Adjust indentation, wrapping, and newline preferences.
- Run format, then copy or download the result.
Typical use cases
- Inspecting minified snippets during debugging.
- Normalizing code style before sharing patches or examples.
- Preparing readable code blocks for docs and tickets.
Practical tips
- Align wrap length with your team lint/prettier settings to minimize diff noise.
- Toggle newline preservation to control aggressive reflow behavior.
- Compare formatter output with your CI linting rules before committing.
FAQ
- Does formatting run locally?
- Yes. Formatting runs in-browser via js-beautify.
- Can formatting change runtime behavior?
- It should only affect whitespace and line breaks, not program logic.
ADVERT
ADVERT