How to use: CSS Minifier
CSS Minifier is a free online CSS Tools tool that compress CSS for production instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
How to use
Using CSS Minifier takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Description
Compress CSS for production.
Because everything is computed client-side, CSS Minifier is safe to use with sensitive data such as API keys, tokens or private logs.
Run
These ready-made examples show typical inputs and the exact output CSS Minifier produces for them.
Examples
Safe whitespace collapse.
.a {
color: red;
margin: 0 auto; /* keep */
}
Use cases
Common situations where CSS Minifier helps:
- Compress CSS for production.
- Because everything is computed client-side, CSS Minifier is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is CSS Minifier?
CSS Minifier compress CSS for production. It runs entirely in your browser, so your data stays private.
Is CSS Minifier free to use?
Yes. CSS Minifier is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.