HTML Minifier - Ultimate HTML Compression Tool | Minify HTML Code Online Free
The most advanced HTML minifier online. Remove comments, whitespace, optional tags, and minify inline CSS/JS. Boost Lighthouse scores, Core Web Vitals, and SEO rankings.
Ultimate HTML minifier: remove comments, whitespace, optional tags. Boost SEO and Core Web Vitals. Free online tool.
HTML Minifier – Ultimate Tool to Boost SEO & Core Web Vitals
HTML minification removes unnecessary characters (whitespace, comments, optional tags) without changing functionality. It reduces file size by 50-80%, improving load times and search rankings.
Why Minify HTML?
- Faster page load – directly improves Largest Contentful Paint (LCP)
- Better SEO – Google uses page speed as ranking factor
- Lower bandwidth costs – save up to 80% on HTML transfer
- Improved Lighthouse score
How to Use
- Paste HTML or upload .html file
- Choose options (remove comments, collapse whitespace, etc.)
- Click Minify
- Download minified version
All files auto-delete after 1 hour. No registration, no watermark.
Advanced Features
| Option | Benefit |
|---|---|
| Remove comments | Strips except IE conditionals |
| Collapse whitespace | Reduces spaces and line breaks |
| Remove optional quotes | id=header instead of id="header" |
| Minify inline CSS/JS | Compresses style and script content |
Security & Privacy
Client-side processing for files under 1 MB, TLS 1.3 encryption, auto-deletion within 1 hour, no logs. GDPR compliant.
Case Study
E-commerce site: HTML 180 KB → 65 KB (64% reduction). Load time 3.2s → 1.9s. Conversion rate +12%.
Integration
Use our CLI, GitHub Action, Webpack plugin, or REST API. Free tier: 1000 requests/day.
Start minifying now – paste your HTML above!
Frequently Asked Questions
Everything you need to know about this tool