What is UnusedCSS?
UnusedCSS is an advanced tool designed to optimize website performance by automatically detecting and eliminating unused CSS rules. By analyzing HTML and JavaScript files, it identifies which CSS rules are actually being utilized, removing approximately 35% of unnecessary code on average. This reduction leads to faster page load times, enhanced user engagement, and more maintainable codebases.
The tool supports all types of websites, including those built with WordPress and Bootstrap, and offers features like scanning JavaScript files for CSS rules, exploring responsive design rules and media queries, and providing visual diffs of cleaned CSS files. Users can set custom user agents for crawling and regularly check their websites for changes, ensuring ongoing optimization.
Features
- Automatically find unused CSS rules: Scans HTML and JavaScript to identify unnecessary CSS
- Provide clean CSS files to download: Generates optimized CSS files after removal
- Scan Javascript files for CSS rules: Ensures comprehensive detection across all code
- Explore responsive design rules and media queries: Handles modern web design elements
- Regularly check your website for changes: Offers scheduled scans for ongoing optimization
- Show a visual diff of the clean CSS file: Allows users to preview changes before applying
- Set a custom user agent for crawling your website: Customizable scanning options
- Compatible with all websites (WordPress, Bootstrap...): Works with various platforms and frameworks
Use Cases
- Optimizing website performance by reducing CSS bloat
- Improving page load times for better user engagement
- Maintaining cleaner and more manageable codebases
- Enhancing SEO through faster website speeds
- Streamlining development workflows for web projects
FAQs
-
What types of websites is UnusedCSS compatible with?
UnusedCSS is compatible with all websites, including those built with WordPress, Bootstrap, and other frameworks. -
How does UnusedCSS handle responsive design and media queries?
UnusedCSS explores responsive design rules and media queries to ensure that necessary CSS for different screen sizes is preserved during the cleanup process. -
Can UnusedCSS scan pages behind login forms?
Yes, scanning pages behind login forms is available in the Business and Agency plans, but not in the Individual or Free plans. -
What is the difference between the Free and paid plans?
The Free plan allows a single use with limited features, while paid plans offer multiple scans, scheduled scans, API access, and more sites and pages. -
How often can I scan my website with UnusedCSS?
Scan frequency varies by plan: Individual offers 15 scans per month, Business offers 100 scans per month, and Agency offers unlimited scans per month.
