cssnano
Modular CSS minifier, built on the PostCSS ecosystem, that compresses stylesheets with a set of optimizations and presets.
cssnano.github.io/cssnano/repositorydocs
cssnano is a CSS minifier built on the PostCSS ecosystem. It runs as a PostCSS plugin, so it is installed with npm alongside PostCSS. Its default preset applies safe transforms, and its advanced preset applies more aggressive ones. The getting-started guide recommends running the minifier in the deployment step, so the compressed files are the ones that reach the server or content delivery network.
Worth knowing
The guide says that in most cases cssnano is not needed on the web server.
Identity
Rendering and deploy
Releases
Adoption
Sources
- 2026-10-28: links
cssnano.github.io/cssnano/ - 2026-10-28: links, Written in, License, GitHub stars
api.github.com/repos/cssnano/cssnano - 2026-10-28: links, Categories
raw.githubusercontent.com/cssnano/cssnano/main/README.md - 2026-10-28: Maintainer
raw.githubusercontent.com/cssnano/cssnano/main/LICENSE-MIT - 2026-10-28: Runtime, Runs as, Install with
cssnano.github.io/cssnano/docs/getting-started/ - 2026-10-28: Minimum runtime
raw.githubusercontent.com/cssnano/cssnano/cssnano@9.9.0/packages/cssnano/package.json - 2026-10-28: First release, Current major version, Last release
api.github.com/repos/cssnano/cssnano/releases - 2026-10-28: Contributors
api.github.com/repos/cssnano/cssnano/contributors?per_page=1 - 2026-10-28: npm downloads a week
api.npmjs.org/downloads/range/2026-09-28:2026-10-04/cssnano - 2026-10-28: Dependent packages, Dependent repositories
packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/cssnano - 2026-10-28: Built on
github.com/cssnano/cssnano/blob/main/README.md