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npm · #3001 most downloaded on npm
CSS minimizer (minifier) plugin for Webpack
Last release 7 months ago
02 Mar 2026
Ships fairly regularly
a new release about every 4 months
Nearly every release is documented
notes for 37 of 37 stable releases
Nothing withdrawn
no release was ever pulled
6 years old
37 releases · first in 2020
One column per quarter.
minimum supported Node.js version is 20.9.0
respect errors and warnings from minimizer without code
7.0.2 (2025-03-06) Bug Fixes better types
use os.availableParallelism() for parallelism when it is available
7.0.0 (2024-05-07) ⚠ BREAKING CHANGES update cssnano to 7.0
minimum supported Node.js version is 18.12.0
5.0.1 (2023-06-13) Bug Fixes improve perf
update cssnano to v6 (migration guide - https://github.com/cssnano/cssnano/releases/tag/cssnano%406.0.0 )
cssnano to v6 (migration guide - https://github.com/cssnano/cssnano/releases/tag/cssnano%406.0.0) (#224)4.2.2 (2022-10-13) Bug Fixes handle swc errors
### 4.2.1 (2022-10-06) ### Bug Fixes * crash
## 4.2.0 (2022-09-29) ### Features * added swc minimizer
## 4.1.0 (2022-09-09) ### Features * added lightningcss support
minimum supported Node.js version is 14.15.0
### 3.4.1 (2022-01-18) ### Bug Fixes * types
## 3.4.0 (2022-01-18) ### Features * added @parcel/css support
### 3.3.1 (2021-12-21) ### Bug Fixes * cssnano types
removed cjs wrapper and generated types in commonjs format (export = and namespaces used in types), now you can directly use exported types
## 3.2.0 (2021-11-23) ### Features * added types
update schema-utils package to 4.0.0 version
source map generation for cssnano and clean-css
### 3.1.2 (2021-11-08) ### Bug Fixes * handle esbuild warnings
### 3.1.1 (2021-10-05) ### Bug Fixes * minified result can be empty
allow returning errors from custom minimize function
### 3.0.2 (2021-06-25) ### Chore * update serialize-javascript
### 3.0.1 (2021-05-31) ### Chore * update jest-worker
minimum supported Node.js version is 12.13.0
update cssnano to 5.0.0 version
cssnano to 5.0.0 versionwebpack v4 supportcache option (respect the cache option from webpack)cacheKeys option respect the cache option from webpack)devtool option from webpack)added support processorOptions for cssnano
### 1.1.5 (2020-10-07) ### Chore * update schema-utils
### 1.1.4 (2020-09-18) ### Bug Fixes * weak cache * source map generation * cache warnings between builds
do not crash on the minify option
### 1.1.2 (2020-08-24) ### Bug Fixes * compatibility with webpack 5
compatibility with 10.13 version of Node.js
## 1.0.0 - 2020-08-01 Initial release
Initial release
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