KeepFlash treats the source trail as the product's backbone.
KeepFlash starts with material you may need to trust later: an article, paper, PDF, video, file, image, or note. The readable content and original source stay attached, so search and AI answers can lead you back to the evidence instead of ending at a generated summary.
Fabric presents a larger workspace boundary. Its public product pages cover search, documents, files, canvases, tasks, people, publishing, collaboration, and integrations. That breadth is useful when the knowledge system also needs to be the place where a team coordinates and produces work.