Open Source Web-based Darkroom Alternatives

There are many alternatives to Darkroom as a web app and since it's discontinued a lot of people are looking for a replacement. The best open source Online alternative is scri.ch. If that doesn't work for you, our users have ranked more than 50 alternatives to Darkroom, but unfortunately only one of them is open source and available as a web app. If you can't find an alternative you can try to remove all filters.