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Head-to-Head NPM Comparison

date-fnsvsdayjs

Detailed package comparison for bundle size, weekly downloads, supply chain security, and license obligations.

Weekly Downloads Leader
date-fns56.0M/wk
Security Grade Leader
Equal Rating100/100
TypeScript Ready
dayjs
Specification
date-fnsv4.4.0
dayjsv1.11.23
Weekly Downloads56.0MWinner44.3M
Unpacked Size10.40 MB665.7 KB
Security Grade
A+(100/100)
A+(100/100)
Lifecycle Scripts Clean (No scripts) Clean (No scripts)
TypeScript SupportCommunity @types Built-in Types (.d.ts)
License TypeMITPERMISSIVEMITPERMISSIVE
Direct Dependencies00
Active Maintainers11
Last ReleaseMay 29, 2026Aug 17, 2026
Install Commandnpm i date-fnsnpm i dayjs
Full Security ReportView date-fns AuditView dayjs Audit
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Frequently Asked Questions

Which package is more popular, date-fns or dayjs?
date-fns is currently more popular with higher weekly downloads (56.0M/week) compared to dayjs (44.3M/week).
Which has better supply chain security, date-fns or dayjs?
date-fns has a security score of 100/100 (Grade A+), while dayjs holds 100/100 (Grade A+). Both packages have equal security standings.
Do date-fns and dayjs provide TypeScript definitions?
date-fns may require external @types definitions, while dayjs includes native TypeScript definitions.
What licenses do date-fns and dayjs use?
date-fns is published under the MIT license (PERMISSIVE), and dayjs is licensed under MIT (PERMISSIVE).