Juxta is an open-source tool for comparing and collating multiple versions of a single textual work. The software allows users to set any of the variations as the base text for creating a scholarly edition. Users can also add or remove versions, change the base text, annotate comparisons, and save the results.
To create a scholarly edition, first a user uploads images of texts and transcribe them. Then, a user can compare different versions of the same text in order to see their differences and decide which to use as the base text. After that, users can edit and annotate the transcription. Finally, the edition can be published to the internet. For more information on this process, see the videos on the "My Desk" part of your account.