Oppia is a free, open-source learning platform. Full of interactive activities called 'explorations', Oppia helps curious minds learn and teach.

There are many alternatives to Encyclopædia Britannica for Windows if you are looking for a replacement. The best Windows alternative is Oppia, which is both free and Open Source. If that doesn't work for you, our users have ranked more than 25 alternatives to Encyclopædia Britannica, but unfortunately only one of them is available for Windows. If you can't find an alternative you can try to remove all filters.
Oppia is a free, open-source learning platform. Full of interactive activities called 'explorations', Oppia helps curious minds learn and teach.
