Chart.js vs FusionCharts
Head-to-head usage across the sites we track.
Top sites by authority
Chart.js · FusionCharts · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
52
4
Open Page Rank 8+
903
19
Open Page Rank 7+
3,177
56
Open Page Rank 6+
5,538
78
Open Page Rank 5+
8,772
119
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 · FusionCharts · share of sites in each country using one or the other
United States
54,017
386
India
28,724
289
Germany
24,266
137
Italy
22,638
102
United Kingdom
20,687
166
Spain
20,634
97
France
20,440
134
Brazil
19,935
141
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Chart.js | FusionCharts |
|---|---|---|
| LCP | 2.2 s | 1.9 s |
| INP | 75 ms | 100 ms |
| CLS | 0 | 0 |
| TTFB | 1000 ms | 600 ms |
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.