Code Beautifier
Paste minified or messy HTML, CSS, JavaScript or JSON and get it back neatly formatted with the indentation you choose.
🔒 100% private — nothing is uploaded
Language
How it works
Pick a language, paste your code, and the beautifier re-indents it for readability — all inside your browser.
1
Choose a language
Select HTML, CSS, JavaScript or JSON so the formatter applies the right rules for that syntax.
2
Paste & beautify
Drop in minified or tangled code and set your preferred indentation — 2 spaces, 4 spaces or tabs.
3
Copy or download
Grab the clean result with one click, or download it as a ready-to-use file.
🔒
Private by design. Formatting runs entirely in your browser — your code is never sent anywhere, and we never see it.
Frequently Asked Questions
Which languages can this beautifier format? ▼
It formats HTML, CSS, JavaScript and JSON. Pick the matching language first so the right indentation rules are applied to your code.
Does it minify code or just format it? ▼
It pretty-prints — it re-indents and spaces your code out so it's easy to read. It doesn't minify or shrink code.
Can I choose the indentation style? ▼
Yes. You can format with 2 spaces, 4 spaces or tabs, and the whole file is re-indented consistently to match your choice.
Why won't my JSON format? ▼
Invalid JSON can't be formatted. The most common culprits are trailing commas, single quotes instead of double quotes, or unquoted keys — fix those and it will format cleanly.
Will formatting change what my code does? ▼
No. It only adds whitespace and line breaks for readability. The actual logic and values stay exactly the same.
Is my code uploaded to a server? ▼
No. Formatting runs entirely in your browser on your own device. Your code is never uploaded, and we never see it.