Closure Library vs jQuery UI

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

Top sites by authority

Closure Library · jQuery UI · 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

Closure Library · jQuery UI · share of sites in each country using one or the other

United States 7,960

585,514

India 5,352

254,733

Germany 2,407

246,243

France 2,590

210,785

Brazil 3,394

208,190

United Kingdom 2,866

201,723

Italy 2,378

195,443

Spain 2,660

180,678

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 Closure Library sites · All jQuery UI sites