Open-Source Alternatives to R4J

We don't know any good R4J open-source alternatives yet.

You are more than welcome to suggest any alternatives that you know of, or ask the community for suggestions.

Alternatively, we recommend checking out LibHunt for open-source libraries and alternatives to R4J.

If you think we've missed something, please suggest an alternative to R4J.

Please use the Feedback button if you think any of the listed products shouldn't be regarded as open-source.

R4J