Based on 78 and 1304 real audits
| Metric | Radix UI | Tailwind CSS | Winner |
|---|---|---|---|
| Performance | 38 | 48 | Tailwind CSS |
| Accessibility | 91 | 90 | Radix UI |
| Best Practices | 87 | 88 | Tailwind CSS |
| SEO | 94 | 92 | Radix UI |
| Security | 67 | 67 | Tie |
| TTFB | 239ms | 375ms | Radix UI |
| Composite | 74 | 75 | Tailwind CSS |
Radix UI and Tailwind CSS are closely matched, each leading in different categories. Radix UI has a composite score of 74 while Tailwind CSS scores 75.
Choose Radix UI when your primary concern is server response time and SEO. Its audit data shows consistent strength in these areas across the sampled sites.
Choose Tailwind CSS when your primary concern is performance and best practices. Its audit data shows consistent strength in these areas across the sampled sites.
Scores are medians across 78 audited Radix UI sites and 1304 audited Tailwind CSS sites in the BeaverCheck database. Every audit runs the same 100+ checks — Lighthouse performance, security headers, accessibility, SEO, server response time — against a real URL. No vendor input, no sponsorship, no affiliate links. Read the full methodology →
Send Feedback