[charlesdaniels]

Try It Online[0] seems to offer a very similar service - if you don't care about the collaboration aspect of it. It claims to be self-hostable[1].

glot.io[2] is another, which seems to fit more in the realm of "pastebin with runnable snippets".

As I understand it, a big sell of repl.it is that they have some kind of collaborative editing support, which none of the alternatives I was able to find in a few minutes of digging have. Google Colab has this, but only support Python (AFAIK) and is not open source.

0 - https://tio.run/#

1 - https://github.com/TryItOnline/tiosetup

2 - https://glot.io/

[toomuchtodo]

Thank you!