HTML Formatter
Format, minify, and validate HTML instantly using Prettier's browser build—fully client-side and private.
HTML Formatter
Format, minify, and validate HTML online. Fast, private, and 100% in-browser with syntax highlighting and error detection.
Input HTML
Formatted HTML
Formatted HTML will appear here after processing
Key Features
Professional-grade tool designed for speed, security, and simplicity
Prettier formatting
Use Prettier rules in-browser for consistent HTML formatting.
Minify
Strip whitespace and comments for production-ready HTML.
Lint hints
Detect common HTML errors and missing attributes.
Local only
Formatting happens locally — no uploads.
Copy & export
Copy formatted HTML or download as a file.
How it works
Parses HTML, applies formatting rules, and outputs pretty or minified HTML.
Parse
Build an HTML parse tree while preserving semantics.
Format
Apply consistent spacing, attribute order, and line breaks.
Export
Provide copy and download options.
Use cases
Dev workflow
Beautify before committing code or sharing snippets.
Learning
See how changing structure affects rendered HTML.
Production
Quick minification for smaller payloads.
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