Base UI vs Bootstrap

Head-to-head usage across the sites we track.

Top sites by authority

Base UI · Bootstrap · how many of each technology's sites sit in the web's highest authority tiers

Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.

By country

Base UI · Bootstrap · share of sites in each country using one or the other

United States 2,428

783,149

India 1,747

375,468

Germany 1,146

285,193

United Kingdom 1,194

258,945

Brazil 1,073

247,896

France 1,016

233,698

Italy 767

215,264

Canada 955

174,973

Audience countries from the Chrome UX Report, top markets of either technology.

Real user performance

Median site's p75 values from the Chrome UX Report, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.

Sites that switched

Domains that dropped one technology and adopted the other within about a year, data nobody else gives away free.

All Base UI sites · All Bootstrap sites