Modern JavaScript date utility library
2KB immutable date time library alternative to Moment.js with the same modern API
| Metric | date-fns | dayjs |
|---|---|---|
Weekly downloads | 87.0M | 54.0M |
Monthly downloads | 369.4M | 219.5M |
Yearly downloads | 2339.8M |
date-fns leads with 369.4M monthly downloads — 2x more popular
| 1729.1M |
GitHub stars | — | 49K |
Forks | — | 2K |
Open issues | — | 1262 |
Bundle (gzip) | 17.1kb | 3.0kb |
License | MIT | MIT |
Latest release | May 29, 2026 | May 26, 2026 |
dayjs has a larger community with 49K GitHub stars
dayjs is lighter at 3.0kb gzipped — 5.8x lighter
dayjs has fewer open issues (1262 vs undefined)
dayjs has a slight edge over date-fns, but both are solid choices. Consider your priorities before deciding.