HTML Formatter
Beautifully indent HTML markup
Free forever — no sign-up, nothing uploaded. Files never leave your device.
HTML Formatter
Beautifully indent HTML markup
Drop your file here
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Browse filesdocument.pdf
1.2 MB
report.pdf
860 KB
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Free forever
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Local processing
Processing time depends on your input and device.
About this tool
Format ragged HTML into clean, consistent indentation with configurable print and tab widths — powered by Prettier.
The HTML Formatter (Beautifier) restructures raw, minified, or poorly formatted HTML into clean, consistently indented, and highly readable code. It's essential for developers working with generated HTML (email templates, CMS outputs, HTML-to-PDF conversions), hand-coded markup, or code extracted from design tools where formatting is mangled or compressed.
The formatter applies intelligent indentation based on HTML nesting depth, aligns attributes consistently, and wraps long lines for readability. It correctly handles self-closing tags, void elements, inline vs block display assumptions, embedded CSS and script blocks, and template syntax — producing output that aligns with standard HTML coding conventions used in professional codebases.
Whether you're cleaning up markup before a code review, normalizing output from an HTML generator, or preparing HTML for documentation, this tool saves significant manual reformatting time. All processing is client-side, ensuring your HTML — which may contain internal data, proprietary templates, or embedded credentials — never leaves your browser.
Key features
Everything you get with HTML Formatter — no premium upsell.
Intelligent indentation based on HTML nesting depth
Consistent attribute alignment and line wrapping
Correct handling of self-closing tags, void elements, and inline styles
Embedded <style> and <script> block formatting
Configurable indentation width (tabs or 2/4 spaces)
Full client-side processing with zero server uploads
How to use HTML Formatter
Follow the steps below to use the tool.
- 1
Paste HTML
Insert your raw, minified, or poorly formatted HTML into the input area.
- 2
Configure Options
Set indentation width, attribute alignment preference, and whether to format embedded style/script blocks.
- 3
Format
Click the format button to produce consistently indented, readable HTML output.
- 4
Copy or Compare
Copy the formatted HTML to clipboard or compare the before/after output to verify correctness.
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Launch HTML FormatterFrequently asked questions
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