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HTML Minifier

Compress HTML markup by stripping redundant spaces and safe comments to optimize web page load times.

Shortcuts: Ctrl+Enter (Cmd+Enter) to minify instantly.

How to Use the HTML Minifier

  1. Paste your HTML source code into the Original HTML box.
  2. Toggle the Remove Comments checkbox if you want to strip HTML comments.
  3. Click Minify HTML or press Ctrl+Enter.
  4. Review the Bytes Saved and Reduction % metrics, then copy or download the minified code.
100% Client-Side Privacy: Your data is processed locally in your browser and is not uploaded to our servers.

Online HTML Minifier: Reduce Page Weight & Accelerate Page Load Speeds

The Todoal HTML Minifier is a client-side optimization utility designed to compress HTML documents by eliminating redundant whitespace, newline characters, tab indents, and HTML comments. In modern web performance optimization, reducing Initial Server Response (TTFB) and Document Object Model parse time is critical for Core Web Vitals and Google search rankings. Minifying HTML reduces the total byte payload transmitted over HTTP, speeding up page rendering across mobile and desktop devices.

Core Web Vitals Optimization

Stripping unnecessary whitespace and comments from HTML documents can reduce file sizes by 15% to 30%, speeding up First Contentful Paint (FCP) and Largest Contentful Paint (LCP) for web visitors on slower cellular networks.

Safe, In-Browser Processing

Minification runs entirely in your browser without uploading files to remote servers. Sensitive email templates, transactional receipts, and private intranet landing pages remain completely protected.

Complete Frontend Asset Minification and Tooling

Need to review or edit minified markup? Restore clean formatting instantly with our HTML Formatter or preview how the page renders visually with the HTML Previewer. If you need to encode characters for display, use the HTML Encoder.

Pair HTML minification with our full optimization suite: compress stylesheets using the CSS Minifier, reduce script bundles with the JavaScript Minifier, optimize data payloads via the JSON Minifier, and shrink image assets with the Image Compressor. Explore all tools in the Developer Tools Suite.

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Frequently Asked Questions

Everything you need to know about this browser tool and privacy.

How does the HTML minifier reduce file size safely?
It removes unnecessary whitespace between HTML tags, collapses redundant internal spaces, and strips standard HTML comments while strictly preserving preformatted tags (<pre>, <textarea>), script strings, and inline text whitespace.
Will minifying HTML break page rendering or JavaScript?
No. The minifier follows conservative, non-destructive rules designed to preserve valid HTML rendering behavior and keep all attributes and inline JavaScript strings intact.
Is any data uploaded to a remote server?
No. All minification executes completely inside your browser's local memory with 100% privacy and zero server uploads.

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