Skip to content

Purgecss vs UnCSS

Professional comparison and analysis to help you choose the right software solution for your needs.

Purgecss icon
Purgecss
UnCSS icon
UnCSS

Purgecss vs UnCSS: The Verdict

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature Purgecss UnCSS
Sugggest Score — —
Category Development Development
Pricing Open Source Open Source

Product Overview

Purgecss
Purgecss

Description: Purgecss is a tool to remove unused CSS from your websites and applications. It scans your content and your CSS files to determine which selectors and rules are actually being used. It then removes the unused CSS, resulting in smaller CSS files and faster load times.

Type: software

Pricing: Open Source

UnCSS
UnCSS

Description: UnCSS is a tool that removes unused CSS from stylesheets. It analyzes HTML files and the CSS files that apply to them, then removes any CSS rules that are not used by the HTML.

Type: software

Pricing: Open Source

Key Features Comparison

Purgecss
Purgecss Features
  • Removes unused CSS
  • Supports multiple CSS preprocessors like SASS, LESS etc
  • Works with popular frameworks like React, Vue, Angular etc
  • CLI and API available
  • Integrates with build tools like Webpack, Gulp etc
UnCSS
UnCSS Features
  • Removes unused CSS rules from stylesheets
  • Analyzes HTML files and applied CSS files
  • CLI and Node.js API available
  • Supports processing multiple files
  • Handles @import rules
  • Ignores CSS rules from user-defined selectors

Pros & Cons Analysis

Purgecss
Purgecss
Pros
  • Reduces CSS file size
  • Improves page load speed
  • Removes unused code and styles
  • Easy to integrate into build process
  • Open source and free
Cons
  • Requires configuring content files to scan
  • May break complex CSS if not properly configured
  • Not useful if CSS is already optimized
  • Requires re-running on content changes
UnCSS
UnCSS
Pros
  • Reduces stylesheet file size
  • Improves page load speed
  • Simplifies CSS maintenance
  • Integrates into build processes
Cons
  • Limited support for dynamic CSS
  • May break complex stylesheets
  • Requires configuring ignore selectors
  • CLI use has learning curve

Pricing Comparison

Purgecss
Purgecss
  • Open Source
UnCSS
UnCSS
  • Open Source

Related Comparisons

PurifyCSS
vs Purgecss vs UnCSS
Helium CSS
vs Purgecss vs UnCSS

Learn More About Each Product

Purgecss
Purgecss
Reviews, pricing & alternatives →
UnCSS
UnCSS
Reviews, pricing & alternatives →

Ready to Make Your Decision?

Explore more software comparisons and find the perfect solution for your needs

Purgecss Alternatives
UnCSS Alternatives
Browse More Software