There can help in multiple ways - even if you don't write code, you can still contribute. We are always looking for assistance with creating or updating documentation, testing our web, desktop, and mobile apps, and reporting bugs.
Developers who wish to make contributions, please go here to start.
Rocket.Chat is currently translated into more than twenty languages, but we've got a long way to go. If you'd like to assist us with this, please email our translation team to be invited to our Lingohub project.