✨ Code Beautifier
Beautify and format JavaScript, CSS, and HTML
Beautify and format JavaScript, CSS, and HTML
Minified or machine-generated code is hard to review, debug, and teach from. A beautifier adds consistent indentation and line breaks so structure pops out — especially nested callbacks, long selectors, and template-heavy HTML.
Beautify and format JavaScript, CSS, and HTML code with proper indentation. Make minified code readable.
Chief Technical Editor
Minified or machine-generated code is hard to review, debug, and teach from. A beautifier adds consistent indentation and line breaks so structure pops out — especially nested callbacks, long selectors, and template-heavy HTML.
This page is meant for local workflows: paste a snippet, read it, then either fix it by hand or feed it into your normal toolchain. It complements your editor but can be faster when you only have a blob from a network panel or a build artifact.
Use it before code review, when documenting a legacy snippet, or when explaining code in a tutorial where readability matters more than byte size.
A developer copies a single-line bundle fragment from a source map preview. Beautifying reveals the control flow and where a missing brace breaks parsing.
Visible structure turns “opaque blob” problems into fixable local edits.
Beautification is a presentation transform. It should not change semantics unless the underlying printer has a bug you need to watch for.
Prefer small chunks when pasting from large bundles so the tab stays responsive.
After beautifying, run your project formatter or linter if you are merging into a repo with strict style rules.
It should not change behavior for standard JS/CSS/HTML, but always verify with tests if the input came from an untrusted build.
Ship minified or bundled code for performance; beautify only for human reading.
IDE tooling is ideal long-term; this page helps when you only have a pasted blob or a quick one-off.
Huge pastes can slow the browser. Work in smaller sections when possible.
Treat those as code too — if parsing fails, your snippet may need a full project parser or a smaller excerpt.
The intent is local processing in your browser; avoid pasting sensitive code on shared machines regardless.
Longer explanations that complement this calculator—same privacy-first, editorial tone.
A practical workflow for developers who want readable JSON and fewer “paste into random websites” mistakes.
A straightforward overview of client-side tools, optional Google ads, and how that maps to everyday privacy expectations.
Opposite workflow — shrink beautified code when you need a compact artifact again.
Explore Tool »Helpful when beautified code exposes strings you need to pattern-match or sanitize.
Explore Tool »