Calculator
What the CSS Minifier does
CSS Minifier: formats Status and Output from CSS Input. Example: the sample loaded on the page gives status Minified.
Give the CSS Minifier your CSS Input and it works out Status and Output. Values update as you type, so comparing options is a matter of editing one field.
Typical users are engineers checking an encoding. Pasting a production payload into an unknown web tool is a real risk, which is why this one stays local.
This runs client-side, which means we never receive what you enter and could not retrieve it if asked.
The field table, the method and a worked example are documented after the tool for anyone who wants to check the working.
What do the CSS Minifier fields mean?
The CSS Minifier uses 1 input. Nothing is blank on load, so you can see the shape of the answer before supplying your own figures.
| Field | What to enter | Default |
|---|---|---|
| CSS Input | paste or type any amount of text | body { margin: 0; padding: 0; } |
How does the CSS Minifier work?
Each output is derived from the inputs above in a single pass; there is no hidden state carried between runs, so the same inputs always give the same formatted output.
Inputs are validated before anything is computed, so a bad entry is reported rather than quietly producing a wrong answer.
Worked example
These are the values the CSS Minifier loads by default, and the result it produces from them. These are the exact values loaded when the page opens, and the answer they produce.
| CSS Input | body { margin: 0; padding: 0; } |
|---|
| Status | Minified |
|---|---|
| Output | body { margin: 0; padding: 0; } |
How to use it
- Paste your content into CSS Input.
- Results update continuously rather than on submit.
- Check Status and Output on the right.
- Print gives a tidy version without the navigation, which is handy for attaching to a file.
What this tool does not do
- Processing happens in your browser, so extremely large inputs are bounded by available memory.
- Output follows the common convention for this format; a specific toolchain may have its own house style.
- No allowance is made for local rules, regional variations or house conventions.
Frequently asked questions
One thing: CSS Input. Nothing starts empty, so nothing is mandatory before you see a result.
With the values loaded when the page opens, status comes out as Minified. Overwrite any of the starting values and the result follows.
No. There is no account, no session and no storage. The values exist only while the tab is open.
No payment and no login. Advertising covers the running costs.
It is exact within the stated method. Anything the method does not model is simply out of scope.