HTML Minifier
Strip whitespace and comments from HTML to reduce its size.
Input
Output
Ready
Drop a file to load it
About this tool
Remove every byte that does not change meaning — indentation, line breaks and, optionally, comments.
When you would use it
- Reducing payload size
- Embedding a document in a single line
- Preparing markup for production
Worked example
<div class="card"> <h2>Ada Lovelace</h2> <p>Score: <strong>91.5</strong></p> </div>
<div class="card"><h2>Ada Lovelace</h2><p>Score: <strong>91.5</strong></p></div>
Things worth knowing
- Whitespace inside
<pre>and<textarea>is significant and is preserved. - Conditional comments are kept, since removing them changes behaviour in old browsers.
Questions
Frequently asked
Is minifying safe?
Yes — only insignificant whitespace is removed. Whitespace-sensitive elements are left alone.
Is my data uploaded anywhere?
No. Every tool on JSONWorks runs entirely in your browser using JavaScript. Your input is never sent to a server, never logged and never stored. The simplest proof is to disconnect from the internet — the tools keep working. The site does load Google Fonts and a Google Analytics page-view tag, so you will see those two requests in your network tab, but neither receives anything you type or paste.
Does it work offline?
Yes. JSONWorks is installable as a progressive web app and caches itself on first visit, so every tool keeps working without a connection.
Related