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Code Beautifier

Paste HTML, CSS, or JavaScript code to get it properly indented and formatted - powered by js-beautify.

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Code Formatting FAQ

Consistent formatting makes code easier to read, review, and debug. It eliminates style debates in teams and makes version control diffs cleaner. Most teams use automated formatters (Prettier, Black, gofmt) as part of CI/CD or pre-commit hooks so formatting is never discussed manually.

2 spaces: popular in JavaScript (Google, Airbnb style guide), React projects. 4 spaces: Python (PEP 8), PHP, Java standard. Tabs: Go (enforced by gofmt), allows each developer to display their preferred width. Pick one per project and enforce with linting. Mixing is the worst outcome.

js-beautify is an open-source JavaScript/HTML/CSS formatter originally ported from a Python beautifier. It handles most real-world code well but is not as opinionated as Prettier. For projects, prefer Prettier (more consistent, ecosystem support). js-beautify is useful for one-off formatting or when you need fine-grained control over options.