CSS Formatter
Format CSS via POST /web-tools/FormatCss on Toolomix (simple tokenizer, not Prettier). Minify runs locally in the browser.
Tips
Format uses the server
Format POSTs your CSS to /web-tools/FormatCss. It is not processed only in the browser.
Minify stays local
Minify runs in your browser and does not call the FormatCss endpoint.
Not Prettier
Server formatting is a simple tokenizer, not Prettier or Stylelint.
Paste text
The primary workflow is pasting CSS into the input—not a multi-file upload IDE.
Format on the server
Posts to /web-tools/FormatCss and returns tokenizer-based indented CSS.
Minify in the browser
Client-side minify without a FormatCss round-trip.
Paste-first workflow
Works on pasted stylesheet text for quick cleanup.
What this tool does
CSS Formatter helps you beautify or compress pasted CSS.
Format runs on Toolomix via FormatCss (simple tokenizer). Minify runs in your browser.
How to use
Paste your CSS
Add stylesheet text into the input field.
Choose Format or Minify
Format sends text to Toolomix; Minify processes it locally.
Copy the result
Review the output and copy it back into your project.
Supported inputs and output
Input: pasted CSS text. Output: formatted (server tokenizer) or minified (client) CSS text.
This is not a CSS linter, Prettier substitute, or binary file converter.
Processing and privacy
Format POSTs your CSS to Toolomix at /web-tools/FormatCss. That action is not browser-only.
Minify runs locally and does not call FormatCss. See the Privacy Policy for how requests and logs are handled.
Limitations
Known limits
- Format is a simple tokenizer—not Prettier
- Does not auto-fix invalid CSS
- Format requires a successful server response
- Primary input is pasted text
- Unusual or nested constructs may format imperfectly
Troubleshooting
If Format fails, confirm network connectivity and retry; Minify may still work offline because it is client-side.
If output looks wrong, fix syntax issues first—the tokenizer does not repair broken CSS.
Frequently Asked Questions
Is my CSS always processed only in the browser?
No. Format POSTs your CSS to Toolomix (/web-tools/FormatCss). Minify runs locally in the browser and does not use that endpoint.
Does Format use Prettier?
No. FormatCss uses a simple server-side tokenizer, not Prettier.
Will it fix invalid CSS?
No. It reorganizes whitespace/structure best-effort and does not detect or repair syntax errors.
Does formatting change how styles render?
It should not change rule meaning—only layout of the source text—assuming the CSS remains valid.
Do I upload a .css file?
The primary workflow is pasting text into the input area.
Is Minify the same as Format?
No. Format beautifies on the server; Minify compresses locally in the browser.
Why did Format fail after Minify worked?
Minify is client-side. Format needs a successful server response from FormatCss—check network errors and retry.
Try Other Free Tools
Try it now
Paste CSS, format via FormatCss, or minify client-side.
