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 | 72.6M | 51.3M |
Monthly downloads | 330.3M | 231.6M |
Yearly downloads | 3197.1M |
date-fns leads with 330.3M monthly downloads — 1x more popular
| 2229.0M |
GitHub stars | — | 49K |
Forks | — | 3K |
Open issues | — | 1335 |
Bundle (gzip) | 17.1kb | 3.0kb |
License | MIT | MIT |
Latest release | May 29, 2026 | Aug 17, 2026 |
dayjs has a larger community with 49K GitHub stars
dayjs is lighter at 3.0kb gzipped — 5.7x lighter
dayjs has fewer open issues (1335 vs undefined)
dayjs has a slight edge over date-fns, but both are solid choices. Consider your priorities before deciding.