What the HTML Minifier does
This tool trims your HTML down to a lighter version of the same page. It deletes HTML comments, removes the gaps between tags, and collapses long stretches of spaces into single ones. Smaller markup means fewer bytes to download, which helps pages render a touch quicker and keeps your source clean before you ship it.
It is handy for front-end developers prepping a build by hand, anyone pasting markup into an email template or CMS field with a size cap, and people who just want to flatten messy, over-indented HTML into a single tight string.
How to use it
- Paste or type your HTML into the input box at the top of the page.
- Press the Minify button.
- The compressed markup appears in the output box below.
- Use the copy button to grab the result and drop it back into your file.
There are no settings to fiddle with. Paste, click, copy, done.
Why minify here
It is instant: the work happens the moment you click, with no queue and no waiting on a server round trip. It is private, because everything runs locally in your browser, so internal or unreleased code never leaves your machine. And it is free with no sign-up, no watermark, and no daily limit, on desktop or phone.
One quick tip
Keep your original file. Minified HTML is awkward to edit by hand, so treat the output as a final, copy-and-deploy version rather than something you keep working in. If a page uses <pre> blocks or relies on exact spacing somewhere, glance over those parts after minifying. Working with whole folders of files instead of one snippet? The BulkPro desktop app from the same team is built for batch jobs like that.
Frequently asked questions
- What does this HTML minifier remove?
- It strips HTML comments, collapses the whitespace between tags, and squeezes runs of multiple spaces down to one. The result is the same markup with the slack taken out, ready to paste back into your project.
- Will minifying break my HTML?
- For normal markup, no. It keeps your tags and content intact. One thing to watch: if your page has a <pre>, <textarea>, or whitespace-sensitive code block, collapsing spaces can change how that text displays, so check those sections after minifying.
- Is my HTML uploaded anywhere?
- No. The minifier runs entirely in your browser with JavaScript. Your markup is never sent to a server, which makes it safe for private or internal code and means it works even offline once the page has loaded.
- Does it minify inline CSS and JavaScript too?
- It focuses on the HTML itself: comments and whitespace. For dedicated CSS or JS shrinking, use the CSS Minifier and JS Minifier tools on JotTools, which understand those languages better.
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Last updated: June 15, 2026