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Minify HTML to reduce file size or beautify minified HTML for readability. Remove comments and whitespace.
Minify HTML to reduce file size or beautify minified HTML for readability. Remove comments and whitespace.
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Paste your HTML code into the input editor. The tool accepts any valid HTML including full page documents, individual components, templates, and HTML email code.
Click the Minify button to compress your HTML by removing all unnecessary whitespace, comments, and optional tags. The minifier displays the reduced file size and savings percentage.
Use the Beautify button to reverse the process: take minified HTML and add proper indentation and line breaks for readable formatting.
Copy the minified or beautified output and use it in your production deployment, email templates, or wherever you need optimized HTML.
Minified HTML files are smaller, which means faster page loads, lower bandwidth costs, and better performance scores. Reducing HTML file size by 20-30% through minification can noticeably improve loading times, especially for content-heavy pages.
Google PageSpeed Insights, GTmetrix, and Lighthouse specifically recommend minifying HTML as a performance optimization. Meeting these recommendations improves your site's technical SEO score and can positively impact search rankings.
When working with minified HTML from production builds, the beautifier restores readable formatting for debugging. This is invaluable when inspecting rendered HTML, diagnosing layout issues, or reverse-engineering third-party templates.
All processing runs in your browser. Your HTML templates, email code, and web application code remain private and are never sent to any server.
The tool removes not just whitespace but also HTML comments, optional closing tags, unnecessary quotes around attributes, and redundant attributes, achieving maximum size reduction.
Always test minified HTML in a browser before deploying to production. While minification rarely causes issues, certain CSS selectors or JavaScript queries that depend on specific whitespace may behave differently.
For HTML emails, be cautious with minification. Some email clients handle minified HTML poorly. Test across multiple email clients (Gmail, Outlook, Apple Mail) after minification.
Combine HTML minification with CSS and JavaScript minification for maximum page speed improvement. Together, these optimizations can reduce total page size by 30-50%.
Keep the original unminified HTML in your source code repository. Use minification only in your build/deployment pipeline so the source code remains readable for development.
HTML minification removes all unnecessary characters from HTML code without changing its functionality. This includes: removing whitespace between tags, deleting HTML comments, removing optional closing tags, stripping unnecessary quotes from attributes, removing default attribute values, and collapsing boolean attributes. The result is a smaller file that browsers render identically to the original.
No, minified HTML renders identically in web browsers. Browsers ignore extra whitespace when parsing HTML, so removing it has no visual impact. However, there are rare edge cases: if your CSS uses the 'white-space: pre' property on elements, or if you rely on specific whitespace in inline elements for spacing, minification might affect the layout. Always test after minifying.
Typical savings range from 10-30% depending on the original code's formatting. HTML with many comments, generous indentation, and extensive whitespace will see larger reductions. Already compact HTML may see only 5-10% savings. When combined with Gzip or Brotli server compression, the total reduction from the original uncompressed size can be 70-90%.
Yes, minifying HTML is a recommended best practice for production websites. It reduces bandwidth usage, improves page load times, and contributes to better performance scores on tools like Google PageSpeed Insights. Most modern build tools (webpack, Vite, Next.js) include HTML minification as part of their production build process.
Yes, completely safe. All minification processing happens in your browser using JavaScript. Your HTML code is never uploaded to any server, never stored, and never logged. This makes the tool safe for proprietary templates, email code containing sensitive information, and any other confidential HTML content.
Minification removes unnecessary characters from the source code itself, creating a permanently smaller file. Compression (Gzip, Brotli) is a server-side process that compresses the file during transfer and decompresses it in the browser. These techniques are complementary: minify first to remove redundant characters, then compress for additional savings during network transfer. Together they can reduce HTML delivery size by 80-95%.
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