HTML Minifier Developer
Remove comments and collapse whitespace in HTML markup.
HTML Minifier is a free online tool that remove comments and collapse whitespace in HTML markup. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free — no account, no quota, no watermark
- Category
- Developer
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- None — it just works
- Works offline
- Yes, after the first visit
About HTML Minifier
HTML minification is riskier than CSS or JavaScript minification, because in HTML whitespace between inline elements is significant — collapsing it removes real spaces between words. This tool removes comments and collapses whitespace only where it cannot change rendering, and leaves the contents of `<pre>`, `<textarea>` and `<script>` completely alone.
How to use it
- Paste the text you want to run through html minifier.
- There is nothing to configure — the result updates as you type.
Under the hood
| Runs on | plain JavaScript — runs the whole thing |
Questions
Why is my minified HTML missing spaces between links?
That is the significant-whitespace problem — a newline between two inline elements renders as a space. Anything that collapses it aggressively will run words together. This tool preserves those.
Is it worth minifying HTML if the server gzips?
Marginally. Compression already handles repeated whitespace well. Comment removal is the more valuable part, particularly for templates that carry build metadata.