Hi, I think these are the questions we all asked at a certain moment and everyone's experience was probably similar but also very specific and different. I started contributing to GitLab [1] and it was probably the easiest thing to do since you can even fix the simple typos on the website, handbook, blogs and that's really appreciated.

Another cool thing for me was the fact that you can use GitLab to contribute to GitLab [2].

It would be best to pick the topic you are most comfortable with (e.g. frontend HTML/JS) and after you dive in you'll definitely discover many other interesting areas you want to learn about.

You should definitely check out https://about.gitlab.com/community/contribute/ for more info on how to get started with contributing to open source. Feel free to join the Gitter room [3] and leave your questions in the chat.

Small note: My contributions led me to a job at GitLab, all the effort was seen and acknowledged and that made me feel really amazing! :-)

[1] - https://about.gitlab.com/what-is-gitlab/

[2] - https://about.gitlab.com/2015/07/07/how-we-use-gitlab-to-bui...

[3] - https://gitter.im/gitlabhq/community.