September 3, 2019

298 words 2 mins read



A JavaScript Internationalization Framework

repo name facebook/fbt
repo link
language JavaScript
size (curr.) 4088 kB
stars (curr.) 3336
created 2018-08-01
license MIT License

FBT is an internationalization framework for JavaScript designed to be not just powerful and flexible, but also simple and intuitive. It helps with the following:

  • Organizing your source text for translation
  • Composing grammatically correct translatable UI
  • Eliminating verbose boilerplate for generating UI


See our demo here See our React Native demo here


Building the fbt library

git clone
cd fbt
yarn install

NOTE: if you make changes to the fbt runtime that you’d like to test in the demo-app, be sure to run this command to rebuild the JS code:

yarn build-runtime

Using fbt

See how to use the source directly with Babel and Webpack in our demo-app.

How FBT works

FBT works by transforming your <fbt> and fbt(...) constructs via Babel plugins. These plugins serve to extract strings from source and lookup translated payloads generated at build-time. FBT creates tables of all possible variations for the given fbt phrase and accesses this at runtime.

Full documentation

Join the fbt community

See the CONTRIBUTING file for how to help out.

Change log


List of npm modules published from this repo:

How to release a new npm version

# Go to the module's folder (where package.json is located)
cd fbt-runtime/
# or
# cd packages/babel-plugin-fbt/
# cd packages/babel-plugin-runtime/

# publishes to npm and push new git tag to Github
yarn publish_to_npm_latest


FBT is MIT licensed, as found in the LICENSE file.

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