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 661,346

11,622

India 293,145

5,697

Germany 277,600

3,580

France 251,984

3,353

United Kingdom 231,762

4,422

Brazil 228,647

3,016

Italy 225,771

2,772

Spain 209,058

2,835

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 jQuery UI sites · All Zepto sites