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README.md

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<p align="center"> <a href="https://babeljs.io/"> </a> </p> <p align="center"> The compiler for writing next generation JavaScript. </p> <p align="center"> <a href="https://npmx.dev/package/@babel/core"></a> </p> <p align="center"> <a href="https://github.com/babel/babel/actions/workflows/ci.yml"></a> <a href="https://codecov.io/github/babel/babel"></a> <a href="https://pkg.pr.new/~/babel/babel"></a> </p> <p align="center"> <a href="https://slack.babeljs.io/"></a> </p> <h2 align="center">Supporting Babel</h2> <p align="center"> <a href="#backers"></a> <a href="#sponsors"></a> <a href="https://medium.com/friendship-dot-js/i-peeked-into-my-node-modules-directory-and-you-wont-believe-what-happened-next-b89f63d21558"></a> </p>

Babel (pronounced "babble") is a community-driven project used by many companies and projects, and is maintained by a group of volunteers. If you'd like to help support the future of the project, please consider:

  • Giving developer time on the project. (Message us on Twitter or Slack for guidance!)
  • Giving funds by becoming a sponsor on Open Collective or GitHub (which goes to our Open Collective account)!

Sponsors

Our top sponsors are shown below! [Become a sponsor]

<a href="https://opencollective.com/babel/sponsor/0/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/1/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/2/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/3/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/4/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/5/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/6/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/7/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/8/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/9/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/10/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/11/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/12/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/13/website" target="_blank"></a> <a href="https://opencollective.com/babel/sponsor/14/website" target="_blank"></a>

Intro

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.

In

js
// ES2020 nullish coalescing
function greet(input) {
  return input ?? "Hello world";
}

Out

js
function greet(input) {
  return input != null ? input : "Hello world";
}

Try it out at our REPL.

FAQ

Who maintains Babel?

Mostly a handful of volunteers, funded by you! Please check out our team page!

Is there a Babel song?

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

Looking for support?

For questions and support please join or open a GitHub Discussion, join our Slack Community (you can sign up here for an invite), ask a question on Stack Overflow, or ping us on Bluesky.

Where are the docs?

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

Want to report a bug or request a feature?

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

Want to contribute to Babel?

Check out:

Some resources:

How is the repo structured?

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

License

MIT