cssnano-cli

library1.0.5jsnpmunverified

A command-line interface for cssnano, a modular CSS minifier built on PostCSS. Version 1.0.5 (last released 2015). The CLI allows minification of CSS files via stdin/stdout or file arguments, with options for sourcemaps, disabling specific optimizations (e.g., autoprefixer, svgo), and a safe mode that disables risky transformations. This package is deprecated; PostCSS-based tools now prefer using cssnano directly via PostCSS plugins or the postcss-cli tool. No longer actively maintained.

devops

npm install cssnano-cli

github ↗package ↗

INSTALL

IMPORT

SIG · CSSNANO-CLI

cssnano-cli

devopsjavascriptv1.0.5

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

cssnano

✓ import cssnano from 'cssnano';

✗ import { cssnano } from 'cssnano';

Default export from cssnano package.

cssnano (require)

✓ const cssnano = require('cssnano');

✗ const { cssnano } = require('cssnano');

CommonJS require for cssnano.

Shows basic CLI usage for minifying CSS files with cssnano-cli, including sourcemaps, safe mode, and disabling features.

// Install: npm install -g cssnano-cli // Minify a file: cssnano input.css output.min.css // With sourcemap: cssnano input.css output.min.css --sourcemap // Safe mode (disable risky optimizations): cssnano input.css output.min.css --safe // Disable specific features: cssnano input.css output.min.css --no-autoprefixer --no-svgo // Using stdin/stdout: cssnano < input.css > output.min.css

cssnano --version

Debug

Known issues

deprecatedcssnano-cli is deprecated; use cssnano directly with PostCSS or postcss-cli.

fix

Use postcss-cli with cssnano plugin: npm install -g postcss-cli cssnano; postcss input.css -u cssnano -o output.min.css

affects: >=0.0.0

breakingNo updates since 2015; incompatible with modern Node.js versions (>10).

fix

Switch to cssnano's PostCSS plugin or postcss-cli.

affects: >=1.0.0

Errors

Common errors & fixes

Error: Cannot find module 'cssnano'

cssnano-cli depends on cssnano but it may not be installed globally.

fix

Install cssnano globally: npm install -g cssnano

ReferenceError: primordials is not defined

Known issue with Node.js >= 10 due to legacy dependency 'graceful-fs' in an older version of 'readdirp' pulled in by cssnano-cli.

fix

Use an alternative tool like postcss-cli with cssnano plugin.

Upgrade

Version history

1.0.5latest on npm

Audit

Dependencies

cssnanorequiredCore minifier library; CSS processing logic depends on it.

Agent activity

8 hits · last 30 days

node

Resources

githubhttps://github.com/ben-eb/cssnano-cli ↗

packagehttps://www.npmjs.com/package/cssnano-cli ↗