jQuery UI vs Zepto

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

Top sites by authority

jQuery UI · Zepto · 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

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

United States 585,514

10,259

India 254,733

4,982

Germany 246,243

3,125

France 210,785

2,815

Brazil 208,190

2,748

United Kingdom 201,723

3,894

Italy 195,443

2,420

Spain 180,678

2,441

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 jQuery UI sites · All Zepto sites