CLI Tool

Critical CSS CLI

Extract and inline critical-path CSS for faster page rendering — by Google's Addy Osmani.

8.6

Installation

npm install -g critical
Platform
Claude Code, VS Code
Pricing
free
Last Tested
2026-04-01

About this Tool

Extract and inline critical-path (above-the-fold) CSS from HTML pages for faster rendering. 16K+ GitHub stars. By Google's Addy Osmani. Essential for landing page speed optimization and Core Web Vitals improvement. Reduces render-blocking CSS to dramatically improve First Contentful Paint scores.

Use Case Examples

  • Inline critical CSS on landing pages to improve Core Web Vitals LCP scores
  • Optimize marketing page load speed by extracting above-the-fold styles
  • Reduce render-blocking resources for better Google PageSpeed scores

Compare Critical CSS CLI

Score Breakdown

8.6

Overall Score

Based on 5 dimensions

Installation
9/10
Documentation
9/10
Relevance
8/10
Quality
9/10
Maintenance
8/10

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