The compiler for writing next generation JavaScript.

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Supporting Babel

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Babel is community-driven and thus mostly maintained by a group of volunteers. It has a lot of companies and projects using it but almost no sponsors/people funded to work on it. If you'd like to help maintain the future of the project, please consider:


Babel is a tool that helps you write code in the latest version of JavaScript. When your supported environments don't support certain features natively, Babel will help you compile those features down to a supported version.


// ES2015 arrow function
[1, 2, 3].map((n) => n + 1);


[1, 2, 3].map(function(n) {
  return n + 1;

Try it out at our REPL.


Who maintains Babel?

Mostly a handful of volunteers! Please check out our team page!

Looking for support?

For questions and support please visit join our Slack Community, ask a question on Stack Overflow, or ping us on Twitter.

Is there a Babel song?

I'm so glad you asked: Hallelujah —— In Praise of Babel by @angus-c. Tweet us your recordings!

Where are the docs?

Check out our website:, and report issues/features at babel/website.

Want to report a bug or request a feature?

Please read through our and fill out the issue template at babel/issues!

Want to contribute to Babel?

Check out our to get started with setting up the repo.

  • If you have already joined Slack, join our #development channel and say hi!
  • Check out the issues with the good first issue and help wanted label. We suggest also looking at the closed ones to get a sense of the kinds of issues you can tackle.
  • Our discussions/notes/roadmap: babel/notes
  • Our progress on TC39 proposals: babel/proposals

How is the repo structured?

The Babel repo is managed as a monorepo that is composed of many npm packages.


Support us with a monthly donation and help us continue our activities. [Become a backer]


Become a sponsor and get your logo on our README on Github with a link to your site. [Become a sponsor]