Date fns by date-fns
Modern JavaScript date utility library
About Date fns
From the project's README at github.com/date-fns/date-fns. Lightly cleaned for readability; for the full source see the upstream repo.
NEW: date-fns v4.0 with first-class time zone support is out!
date-fns provides the most comprehensive, yet simple and consistent toolset for manipulating JavaScript dates in a browser & Node.js
It's like Lodash for dates It has 200+ functions for all occasions. Modular: Pick what you need. Works with webpack, Browserify, or Rollup and also supports tree-shaking. Native dates: Uses existing native type. It doesn't extend core objects for safety's sake. Immutable & Pure: Built using pure functions and always returns a new date instance. TypeScript: The library is 100% TypeScript with brand-new handcrafted types. I18n: Dozens of locales. Include only what you need. and many more benefits
Health score breakdown
6-dimension composite. See methodology for formula and weights.
Adoption signals
Real-world usage data, pulled from each registry. The bigger the numbers, the more battle-tested the project.
| Signal | Value | Source |
|---|---|---|
| GitHub stars | 37k | github.com/date-fns/date-fns |
| GitHub forks | 1.9k | github.com/date-fns/date-fns |
| NPM downloads (last month) | 339540k | date-fns |
Release & maintenance
Is this project actively maintained, or about to die? Check the recency of last commit and last release.
| Project age | 11.6 years | since Oct 2014 |
| Last commit | 8 months ago | Sep 8, 2025 |
| Releases shipped | 122 | last: 1.6 years ago |
| Security policy | SECURITY.md | declared by maintainers |
| Funding links | 2 | declared by maintainers |
Self-hosting cost across providers
Detected requirements: 4GB RAM, 40GB disk minimum. Cheapest plan per provider that meets the requirement.
| Provider | Plan | Specs | Monthly | |
|---|---|---|---|---|
| hetzner | CAX11 | 2c · 4GB · 40GB | $4.13 USD | Deploy → |
| vultr | VC2 | 1c · 1GB · 25GB | $5 USD | Deploy → |
| linode | Nanode 1GB | 1c · 1GB · 25GB | $5.12 USD | Deploy → |
| digitalocean | Basic Regular 1GB | 1c · 1GB · 25GB | $6 USD | Deploy → |
What people say on Hacker News
Ready to self-host Date fns?
Spin up a hetzner CAX11 (4GB RAM, 40GB disk) for $4.13/mo and follow the project's official install docs.
Data last refreshed May 7, 2026.
Similar open-source projects
Projects in our directory that replace the same SaaS or share topics with Date fns.