ToolbitCSS Formatter and Minifier
Make a compiled or hand-edited stylesheet readable again, or squeeze it down for production. Both directions run locally on your machine.
What the CSS Formatter does
- Beautify minified stylesheets back into readable rules.
- Minify with whitespace, comment, and duplicate-rule removal.
- Consistent indentation and brace placement.
- Handles media queries, nesting, and custom properties.
How to use it
- Paste the CSS you want to reformat.
- Choose beautify or minify.
- Copy the result back into your stylesheet.
Why it runs locally
Toolbit has no backend. The CSS Formatter is implemented with standard browser APIs, so your input is processed in the tab and never uploaded, logged, or retained. That is what makes it safe to paste real data into — and it is also why the tool keeps working with the network disconnected, once you have installed Toolbit as an app.
Frequently asked questions
- Does minifying change how my CSS behaves?
- No. Minification only removes whitespace, comments, and redundant syntax — the cascade and specificity are untouched.
- Does it support CSS custom properties?
- Yes, along with media queries, supports queries, and nested rules.
- Is my stylesheet uploaded?
- No. Every Toolbit tool runs entirely in your browser using standard Web APIs. Your input is never uploaded, logged, or sent to a third party — you can open the network tab and watch it stay quiet.