GSAP vs Inertia.js

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

Top sites by authority

GSAP · Inertia.js · 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

GSAP · Inertia.js · share of sites in each country using one or the other

United States 328,404

4,255

India 118,978

2,681

United Kingdom 105,671

2,324

Germany 102,329

2,185

France 97,822

1,905

Italy 96,801

1,368

Brazil 79,378

2,203

Spain 76,953

1,464

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 GSAP sites · All Inertia.js sites