Developer Tools
CSS Minifier
Minify pasted CSS by removing comments and unnecessary whitespace in your browser.
Output will appear here.
What this tool does
This CSS minifier compacts stylesheet snippets for demos, templates, inline examples, and small production handoffs without external services.
Common use cases
Compact pasted CSS snippets by removing comments and unnecessary whitespace before embedding or sharing them.
Use CSS Minifier when you are working with copied API payloads, logs, encoded values, config snippets, identifiers, or debugging data and need a quick browser-local check before pasting the result into docs, tickets, tests, or another developer tool.
How to use it
- Paste CSS into the minifier.
- Review compact output and saved character count.
- If the source still needs cleanup, format it first with CSS Formatter and then minify it.
- Copy the minified CSS for your snippet, template, or documentation.
Example workflow
Paste the CSS rule block or stylesheet snippet, format or minify it, review the declarations, then copy the clean output back into your editor, component, docs, or issue comment.
Privacy note
Client-side only: CSS text is minified in your browser and is not uploaded.
FAQ
Does the CSS minifier upload my CSS?
No. Minification runs locally in your browser.
What does it remove?
It removes CSS comments, repeated whitespace, and unnecessary spaces around common CSS punctuation.
Can I use it for small snippets?
Yes. It is built for pasted snippets, examples, and stylesheet blocks within the browser text limit.
Explore more tools
Browse the Developer Tools hub or continue with the Developer Data Toolkit when this task is part of a larger workflow.