48.6k
Dayjs
Day.js is a 2kB immutable date-time library, providing a modern API as a lightweight alternative to Moment.js.
👨💻
Development🟡
JavaScript🔨
Utils
3 Open Source Alternatives to Moment.js
There are 3 open-source alternatives to Moment.js in this directory. The most popular is Dayjs with 48.6k GitHub stars, followed by Date-fns(36.5k stars). All are open source, free to use, and many can be self-hosted.
Quick comparison
| # | Tool | Stars | Language | License |
|---|---|---|---|---|
| 1 | Dayjs Day.js is a 2kB immutable date-time library, providing a modern API as a lightweight alternative to Moment.js. | 48.6k | JavaScript | MIT License |
| 2 | Date-fns ⏳ A modern JavaScript date utility library that provides comprehensive, lightweight functions for date manipulation. | 36.5k | TypeScript | MIT License |
| 3 | Spacetime A lightweight JavaScript library for handling timezone conversions and date-time operations. | 4.1k | JavaScript | Other |
All open-source alternatives to Moment.js
36.5k
Date-fns
⏳ A modern JavaScript date utility library that provides comprehensive, lightweight functions for date manipulation.
🔨
Utils🟡
JavaScript👨💻
Development
4.1k
Spacetime
A lightweight JavaScript library for handling timezone conversions and date-time operations.
👨💻
Development🟡
JavaScript🔨
Utils
Frequently asked questions
What are the best open-source alternatives to Moment.js?
The top three are Dayjs(48.6k stars), Date-fns(36.5k stars), Spacetime(4.1k stars). All are open source and free to use.
Are these alternatives to Moment.js free?
Yes. Every tool listed here is open source and free to use in your own projects. Many can be self-hosted on your own infrastructure, which means no subscription fees and full control over your data.
Can I self-host an alternative to Moment.js?
Many of the alternatives listed are self-hostable. Each tool's page lists hosting details, system requirements, and licensing terms.
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