Immutable.js vs Swiper
Head-to-head usage across the sites we track.
Top sites by authority
Immutable.js · Swiper · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
0
120
Open Page Rank 8+
8
2,420
Open Page Rank 7+
18
11,764
Open Page Rank 6+
27
25,133
Open Page Rank 5+
38
48,286
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Immutable.js · Swiper · share of sites in each country using one or the other
United States
1,058
436,711
India
155
243,576
Brazil
111
230,631
Germany
135
191,904
Japan
74
181,403
United Kingdom
181
161,912
France
130
156,599
Italy
110
140,074
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Immutable.js | Swiper |
|---|---|---|
| LCP | 1.6 s | 2.1 s |
| INP | 75 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 900 ms |
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.