DigiKitHTML Minifier - DigiKitApp
Strip unnecessary whitespace from HTML code.
When should you use this?
Use this to shrink an HTML page's size and cut server transfer time, right before going live.
When shouldn't you use this?
Editing HTML by hand after it's been minified is much harder; always edit the original file and apply minification last.
Step-by-step
- Copy the source of the page you want to shrink from your editor. A full document works, and so does a single component snippet.
- Paste it into the "HTML code" field.
- Click "Run". The output, with extra whitespace removed, shows up where it says "Result will appear here."
- Copy the output into the file you're about to deploy. Keep the original, readable file somewhere safe for future edits.
Example
Say you hand-coded a landing page. Every tag sits on its own line and nested blocks are indented four spaces deep. That indentation helps you in the editor, but the browser ignores it. Run the page through the tool and the leading spaces and gaps between tags get stripped, leaving a much tighter file. The savings are noticeable on long templates with heavy nesting. On a ten-line snippet the difference is small.
What is HTML minification for?
Minification squeezes unnecessary whitespace to reduce file size. The tool removes HTML comments (<!-- -->), except conditional comments, collapses runs of whitespace and line breaks into one space, and reduces the whitespace between tags to a single space. It leaves pre, textarea, script and style blocks untouched. Spaces around commas, colons and similar characters in text are not removed.
When minifying
- One space is kept between tags, because whitespace between inline elements is part of the visible text. So the saving is smaller than with minifiers that remove it completely.
- script and style blocks stay as they are; you can minify them separately with the JavaScript and CSS minifiers.
- Back up the original before minifying; minified code is hard to edit.
- For production, an HTML minifier in your build process also shortens attribute quotes and optional tags; this tool only cleans whitespace and comments.
Things to keep in mind
- A single space between inline elements can be part of the visible text. If the space between two links disappears, the words run together. Open the output in a browser and look for spots like that.
- Whitespace inside pre and textarea matters. If your page uses those tags, check that their formatting survived.
- For inline script or style blocks, a dedicated JavaScript or CSS minifier will usually do a better job than an HTML pass.
- If your server already applies gzip or similar compression, the transfer savings from minifying may be smaller than you expect, though the raw file still gets lighter.
Frequently asked questions
Is the code/data I enter stored anywhere?
No, nothing is sent to a server or stored; processing happens entirely in your browser.
Does it work with large inputs?
Yes, though performance may degrade with very large inputs (several MB or more).
Is this tool free?
Yes, it's completely free for core use and requires no account.