🆚 Headless UI vs. Primer CSS
- 📈 Headless UI is much more popular than Primer CSS.
- 🌎 Headless UI is more popular in the United States, Germany, and the United Kingdom.
- 🌍 Primer CSS is more popular in Mauritius.
Statistics based on 4M+ analyzed websites. About this data
Headless UIType
Website component
User interface framework
About
Headless UI is an open-source library of unstyled, fully accessible UI components designed for 
React and 
Vue applications, with close integration with 
Tailwind CSS.
It provides interactive components such as dialogs, menus, listboxes, comboboxes, tabs, switches, and popovers, implements keyboard navigation and 
ARIA accessibility patterns, and supplies only the behavior and accessibility logic so developers can apply any design system, 
CSS framework, or custom styling.
GitHubHeadquarters
Kitchener, Ontario, Canada
San Francisco, California, United States
Pricing
Free ✔️ Open source
Free ✔️ Open source
Categories
Popularity
Determined by the number of sites using each technology.
Headless UI component technology is 15 times more popular than Primer CSS.
Total websites
Market share
UI Frameworks
Popularity by country
Determined by the number of sites detected from each country.
Headless UI is more popular in the United States, Germany, and the United Kingdom, while Primer CSS is more popular in Mauritius.
United States
Germany
United Kingdom
Sweden
France
Canada
Australia
Netherlands
India
Switzerland
Awards
- ⭐ 4th most popular in Sweden in the Components category.
- ⭐ 5th most popular in Indonesia in the Components category.
- ⭐ 6th most popular in Norway in the Components category.
- ⭐ 7th most popular in Sweden in the UI Frameworks category.
- ⭐ 8th most popular in the United States in the Components category.
- 🔥 20th most popular in Canada in the UI Frameworks category.
- ⬆️ 31st most popular in the United States in the UI Frameworks category.
Popularity by domain category
Determined by the number of sites in each category.
Headless UI is more popular among sites focused on business, online shopping, and marketing and merchandising, while Primer CSS is more commonly used on general news sites.
Business
Online Shopping
Marketing/Merchandising
Sports
Internet Services
Blogs/Wiki
Travel
Education/Reference
General News
Software/Hardware
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 4,001,723 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.