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 571,404

10,149

India 248,863

4,916

Germany 241,117

3,067

France 214,196

2,827

Brazil 201,788

2,650

United Kingdom 200,445

3,891

Italy 201,839

2,462

Spain 191,362

2,534

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, Sep 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