Immy is targeted at Node 6.5.x and newer, which allows most recent language features to be used. The use of ES2015 modules (which Node 6.5.x does not support) is enabled by using Webpack to bundle the package's code together.

Immy has no dependencies, so it's fine to use in browsers.

Note however that the bundled code is not minified, nor is it transpiled into ES5. If you want to use Immy in browsers that only support ES5, you will need to handle this transpilation yourself.

(Babel is included in the project purely to allow Jest to resolve imports and exports, so that it can run unit tests.)

To support tree-shaking, the unbundled ES2015 code is also included in the package. Recent Webpack versions should support this without any extra configuration.