date-fns/date-fns vs iamkun/dayjs
iamkun/dayjs shows stronger signals overall
As of September 2026, dayjs shows healthier maintenance signals than date-fns. dayjs rates Healthy overall while date-fns rates Mixed. date-fns last saw a commit 1 month ago with 10+ active contributors, while dayjs last saw a commit 1 month ago with 19+ active contributors. Neither has known critical or high-severity CVEs in its dependency tree.
Informational only. RepoPilot summarises public signals at the time of analysis. Not professional, security, or legal advice.
date-fns/date-fns
Single-maintainer risk — review before adopting
top contributor handles 90% of recent commits; license evidence incomplete
license evidence incomplete
Documented and popular — useful reference codebase to read through.
Scorecard "Token-Permissions" is 0/10; license evidence incomplete
- ⚠Single-maintainer risk — top contributor 90% of recent commits
- ✓Last commit 2w ago
- ✓10 active contributors
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard
iamkun/dayjs
Healthy across all four use cases
No blocking maintenance, license, or known-CVE signals were found; still verify the package version and fit.
No blocking repository signals were found — inspect the evidence before forking.
Documented and popular — useful reference codebase to read through.
No blocking repository-level signals were found; deployment review is still required.
- ⚠Concentrated ownership — top contributor handles 71% of recent commits
- ✓Last commit 3d ago
- ✓19 active contributors
- ✓MIT licensed
- ✓CI configured
- ✓Tests present
Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests, cross-checked against dependency CVEs from deps.dev and OpenSSF Scorecard
Signal-by-signal breakdown
| date-fns | dayjs | |
|---|---|---|
| Stars | 36,632 | 48,665 |
| Last commit | 1mo ago | 1mo ago |
| License | Unknown | MIT |
| Open issues | 995 | 1,298 |
| Has tests | ✓ | ✓ |
| Has CI | ✓ | ✓ |
| Test coverage | 2% | 41% |
| Dependency CVEs | No CVEs | No CVEs |
| Architecture grade | — | — |
| Cycles | — | — |
| Bottom-line | Mixed signals | Healthy signals |
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