AlternativeTo is a site I use quite a bit. Personally I use it when I get fed up with an Android app having too many ads / creepy network behavior or want to find a self-hostable version of a freemium service.
It has filters for free, open source, platform type, etc. From my understanding it’s all crowd sourced, so if you disagree with a rating put in a vote! Sharing this in hopes that others find it as useful as I do.
If you know of similar or better resources I would love to hear about them.
Edit: many people are noting that the comments and reviews are out of date. I agree! Despite that I still find it to he useful. It would be great if this little bit of visibility gets more folks engaged over there to improve it.
Wikipedia can also be useful to find software - e.g.:
- https://en.m.wikipedia.org/wiki/Comparison_of_vector_graphics_editors
- https://en.m.wikipedia.org/wiki/Comparison_of_integrated_development_environments
- https://en.m.wikipedia.org/wiki/Comparison_of_audio_player_software
or look at the Wikipedia page for whatever you want to replace and see if it’s in a category such as https://en.wikipedia.org/wiki/Category:Audio_editing_software_for_Linux
You can even do this with things that aren’t software, e.g. Homebase -> UK home improvement stores -> Screwfix.
