PDF.js vs Webpack

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

Top sites by authority

PDF.js · Webpack · 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

PDF.js · Webpack · share of sites in each country using one or the other

United States 15,476

278,336

India 9,983

147,200

Germany 6,438

119,952

United Kingdom 6,236

111,972

Brazil 5,953

95,582

France 5,600

95,292

Canada 5,195

86,422

Netherlands 4,083

69,064

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 PDF.js sites · All Webpack sites