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 8,763

661,346

India 6,090

293,145

Germany 2,722

277,600

France 3,031

251,984

United Kingdom 3,315

231,762

Brazil 3,852

228,647

Italy 2,746

225,771

Spain 3,071

209,058

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, Jun 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