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Radix UI vs shadcn/ui

Based on 78 and 50 real audits

View Radix UI details | View shadcn/ui details
MetricRadix UIshadcn/uiWinner
Performance3847shadcn/ui
Accessibility9190Radix UI
Best Practices8786Radix UI
SEO9495shadcn/ui
Security6768shadcn/ui
TTFB239ms333msRadix UI
Composite7475shadcn/ui
Performance
Radix UI
38
shadcn/ui
47
Accessibility
Radix UI
91
shadcn/ui
90
Security
Radix UI
67
shadcn/ui
68
SEO
Radix UI
94
shadcn/ui
95
Composite
Radix UI
74
shadcn/ui
75

shadcn/ui outperforms Radix UI in 4 of 7 categories, with a stronger composite score (75 vs 74). Radix UI leads in accessibility, best practices, TTFB.

When to choose Radix UI

Choose Radix UI when your primary concern is server response time and accessibility. Its audit data shows consistent strength in these areas across the sampled sites.

When to choose shadcn/ui

Choose shadcn/ui when your primary concern is performance and SEO. Its audit data shows consistent strength in these areas across the sampled sites.

How this comparison was built

Scores are medians across 78 audited Radix UI sites and 50 audited shadcn/ui 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 →

FAQ

Which is faster, Radix UI or shadcn/ui?
Based on real BeaverCheck audits, shadcn/ui sites score higher on Lighthouse performance (47 vs 38 on average).
Which has better security, Radix UI or shadcn/ui?
shadcn/ui sites score higher on security analysis (68 vs 67 on average).
Which has better accessibility, Radix UI or shadcn/ui?
Accessibility scores measured by Lighthouse WCAG 2.1 checks favor Radix UI (91 vs 90). Both technologies can be made fully accessible with care — the difference reflects common patterns in the sampled sites, not inherent platform limits.
Which is better for SEO, Radix UI or shadcn/ui?
shadcn/ui sites score higher on Lighthouse SEO signals (95 vs 94 on average), which cover meta tags, crawlability, mobile friendliness, and structured data. Content strategy and backlinks still matter more than platform choice for ranking.
Which has faster server response (TTFB), Radix UI or shadcn/ui?
Radix UI sites show lower Time to First Byte (239 ms vs 333 ms on average). TTFB depends heavily on hosting and CDN setup rather than the technology itself, but the sampled sites suggest a meaningful difference in common deployment patterns.
Should I choose Radix UI or shadcn/ui for my website?
Both platforms have trade-offs. shadcn/ui scores higher on overall composite score while Radix UI may excel in metrics you care about most. Run a free BeaverCheck audit on a real site using each to compare the metrics relevant to your use case.
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