# CSS minify
[](https://github.com/Mnwa/css-minify/actions?query=workflow%3Aminify)
[](https://github.com/Mnwa/css-minify/actions?query=workflow%3Aclippy)
[](https://docs.rs/css-minify/)
[](https://crates.io/crates/css-minify)
[](https://crates.io/crates/css-minify)
CSS minification library based on `nom`.
This library parses css input, minifies it and applies some level-dependent optimizations to it.
```rust
use css_minify::optimizations::{Minifier, Level};
fn main() {
assert_eq!(
Minifier::default().minify(
r#"
#some_id, input {
padding: 5px 3px; /* Mega comment */
color: white;
}
/* this is are test id */
#some_id_2, .class {
padding: 5px 4px; /* Mega comment */
Color: rgb(255, 255, 255);
}
"#,
Level::Three
),
Ok("#some_id,input{padding:5px 3px;color:white}#some_id_2,.class{padding:5px 4px;color:#fff}".into())
)
}
```
# CSS minifier
[](https://github.com/Mnwa/css-minifier/actions?query=workflow%3Aminifier)
[](https://crates.io/crates/css-minifier)
[](https://crates.io/crates/css-minifier)
Web version also available https://css-minify.panfilov.tech/
CLI wrapper for css-minify library.
```
css-minifier 0.1
USAGE:
css-minifier [OPTIONS] --input <input>
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
-i, --input <input> css which will be minified
-l, --level <level> Optimization levels:
0 - Without optimizations
1 - Remove whitespaces, replace `0.` to `.` and others non
dangerous optimizations
2 - Level One + shortcuts (margins, paddings, backgrounds and etc).
In mostly cases it's non dangerous optimizations, but be careful
3 - Level Two + merge @media and css blocks with equal
screen/selectors. It is a danger optimizations, because ordering of
your css code may be changed.
[default: 1]
-o, --output <output> output to optimized variant
```
Example
```bash
css-minifier -i "~/test.css" -o "~/test.min.css" -l 3
```