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Code & Dev
HTML Minifier
Minify HTML code by removing unnecessary whitespace and comments.
What this page is for
Fast browser workflow
Use this tool without registration, downloads, or page clutter.
Consistent workspace
Supported dynamic tools now run in a real interface instead of a fake loading panel.
Private by default
Ideal for quick inspection, transformation, and test data generation alongside temporary email workflows.
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Workspace
Run the tool here
Output
Run the workspace to see the response here.
How to use
- Paste the HTML.
- Run the minifier.
- Compare the output in a browser before deploying.
About this tool
Minify HTML by removing comments, collapsing whitespace and trimming optional characters.
HTML Minifier is part of the TmpMailer Code & Dev set — free browser utilities that open instantly, need no account, and pair well with a temporary-email workflow when you just need a quick result.
Common use cases
- Shrinking a static landing page.
- Preparing an email template for size limits.
- Reducing a CMS-rendered fragment.
Common questions
Can minification break inline scripts?
Yes if whitespace is significant inside pre, textarea or inline JavaScript. Review those sections.
Does it improve performance much?
It saves bytes but is smaller than image and caching wins. Enable server compression first.
Should I keep a readable copy?
Yes. Keep the source and minify as a build step so future edits are manageable.
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