Chart.js vs KaTeX

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

Top sites by authority

Chart.js · KaTeX · 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

Chart.js · KaTeX · share of sites in each country using one or the other

United States 48,182

2,351

India 25,375

2,409

Germany 21,390

1,122

Italy 19,374

787

United Kingdom 18,271

1,082

Brazil 18,003

1,060

Spain 17,614

816

France 17,096

905

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 Chart.js sites · All KaTeX sites