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HTML Beautifier

format and indent HTML code with configurable settings

The HTML Beautifier on DevLab lets you format and indent HTML code with configurable settings directly in your browser — no installation, no signup, no limits. Format minified HTML from a CMS. Works on all devices and supports keyboard shortcuts for power users.

Try it now — free, instant, no signup

What is HTML Beautifier?

Format and indent HTML code with configurable indentation settings. Transforms minified or poorly formatted HTML into clean, readable markup with proper nesting.

Developers use HTML Beautifierdaily to save time and avoid errors. Instead of writing custom code or searching through documentation, you can get immediate results with a simple paste-and-process workflow. DevLab's HTML Beautifier is optimized for speed — results appear as you type with no button clicks required.

All processing happens entirely in your browser using modern JavaScript APIs. This means your data never leaves your machine, making it safe to use with sensitive content like tokens, API keys, or private documents.

When to use HTML Beautifier

✓Format minified HTML from a CMS
→Make scraped HTML readable
⚡Tidy up HTML before a code review
🔧Format HTML email templates

Frequently Asked Questions

How do I use HTML Beautifier?
Simply enter your input in the field above and the HTML Beautifier will process it instantly in your browser. No setup or installation needed — results appear in real time.
Is HTML Beautifier free?
Yes, completely free. DevLab provides HTML Beautifier and all other tools at no cost, forever. No credit card, no subscription, no hidden fees.
Does HTML Beautifier store my data?
No. All processing happens entirely in your browser using client-side JavaScript. Nothing you enter is ever sent to a server. Your data stays on your device.
What is HTML Beautifier used for?
HTML Beautifier is used for: Format minified HTML from a CMS; Make scraped HTML readable; Tidy up HTML before a code review; Format HTML email templates.
Can I use HTML Beautifier offline?
Once the page is loaded, yes — HTML Beautifier works offline because all processing is client-side. You may need to reload if the page hasn't been visited recently.

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