Luxon vs You Don't Need Moment.js
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
A JavaScript library for working with dates, times, and time zones.
Open source · MIT
A guide to replacing Moment.js with native JavaScript or lighter date libraries, plus an ESLint plugin.
The short answer
Choose Luxon if you need…
- JavaScript developers who need to work with dates and time zones in an app
- Teams moving away from Moment.js, since the README has a guide for Moment users
- Projects that want to avoid shipping large locale or time zone data files
Choose You Don't Need Moment.js if you need…
- Developers maintaining a web app that loads Moment.js and wants a smaller bundle
- Teams planning a migration away from Moment.js who want a side-by-side reference
- Developers who only use a few simple Moment.js functions
- Projects that want to find Moment.js usages automatically via ESLint
Side-by-side
| Luxon | You Don't Need Moment.js | |
|---|---|---|
| Type | Library | Learning resource |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 16.5k | 13.3k |
| Setup difficulty | Beginner | Beginner |
| How you get it | Install with a package manager | Install with a package manager |
| Main language | JavaScript | JavaScript |
| Last code update | 3 months ago | 10 months ago |
What each one is
Luxon
Luxon is a JavaScript library for handling dates and times. It provides DateTime, Duration, and Interval types, and uses the browser or runtime's built-in Intl and time zone support rather than bundling its own locale or time zone data. Developers use it to parse, format, and do math on dates in a chainable, immutable way.
You Don't Need Moment.js
This is a reference guide, not a runnable program. It lists common date and time tasks (parsing, formatting, adding and subtracting, comparing) and shows how to do each one without Moment.js, using native JavaScript or smaller libraries such as date-fns and dayjs. It also includes a comparison table and an ESLint plugin that flags places in your code where Moment.js may not be needed.
Best for
Luxon
- JavaScript developers who need to work with dates and time zones in an app
- Teams moving away from Moment.js, since the README has a guide for Moment users
- Projects that want to avoid shipping large locale or time zone data files
You Don't Need Moment.js
- Developers maintaining a web app that loads Moment.js and wants a smaller bundle
- Teams planning a migration away from Moment.js who want a side-by-side reference
- Developers who only use a few simple Moment.js functions
- Projects that want to find Moment.js usages automatically via ESLint
Strengths
Luxon
- Immutable, chainable API that the README describes as unambiguous
- Uses native time zone and Intl support, so no separate locale or time zone files are needed
- MIT licensed with a large star count and documented API and upgrade guide
You Don't Need Moment.js
- Clear, organized list of common date tasks with alternatives for each
- Includes a feature parity table against native JavaScript and Temporal
- Provides an ESLint plugin to help find code that could drop Moment.js
Not ideal for
Luxon
- Non-developers, since it is a code library and needs to be called from a program
- Projects that cannot rely on the platform's Intl and time zone support, since Luxon uses it rather than bundling its own data
- Anyone who only needs a simple date display and not a library dependency
You Don't Need Moment.js
- Projects that rely heavily on Moment.js timezone features, since the README says Moment.js timezone support is good via moment-timezone and suggests this guide is for apps not using timezones
- Developers looking for a single drop-in library, since the guide covers several alternatives rather than recommending one
Trade-offs
Luxon
- Depends on the runtime's Intl and time zone support, so behavior can vary across environments (inferred from the feature description)
- The README does not list a latest release, and the project mentions planning a major version 4.0, so check the current status before adopting
- The README is brief; detailed usage is on the external documentation site
You Don't Need Moment.js
- The README is truncated in this data, so not every function's details could be verified here
- The comparison table's size and star figures are badge links that may change over time
Getting started
Luxon
Install from npm (package name from npm badge link)
npm install luxonYou Don't Need Moment.js
Install the ESLint plugin as a dev dependency
npm install --save-dev eslint-plugin-you-dont-need-momentjsFrequently asked questions
What is the difference between Luxon and You Don't Need Moment.js?
Luxon: A JavaScript library for working with dates, times, and time zones. You Don't Need Moment.js: A guide to replacing Moment.js with native JavaScript or lighter date libraries, plus an ESLint plugin. Luxon suits javascript developers who need to work with dates and time zones in an app, while You Don't Need Moment.js suits developers maintaining a web app that loads moment.js and wants a smaller bundle.
Are Luxon and You Don't Need Moment.js free?
Luxon: Free and open source. You Don't Need Moment.js: Free and open source.
Is Luxon or You Don't Need Moment.js more popular?
Luxon has more GitHub stars (16.5k) than You Don't Need Moment.js (13.3k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to Luxon and You Don't Need Moment.js?
Other options people compare them with include Day.js, react-dates, flatpickr.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.