KeepFlash
Turn saved content into searchable knowledge.
KeepFlash is a personal knowledge library for webpages, PDFs, YouTube videos, files, images, and notes. Save whole pages, selected passages, or files without deciding on a permanent folder first. KeepFlash preserves source context, makes saved content searchable, and uses AI-assisted tags and Topic Pages to connect related material. Open any note or Topic Page to ask questions grounded in selected sources while keeping citations visible. It is built for researchers, writers, students, and knowledge workers who want saved material to support future work instead of disappearing into a bookmark graveyard. A free plan is available with no credit card required.
Features
• Save webpages, selected passages, images, PDFs, videos, files, and notes
• Search saved titles and source content with keyword and semantic search
• Annotate PDFs and navigate YouTube transcripts and chapters
• Organize related material with editable AI-assisted tags and Topic Pages
• Ask questions across selected sources with citations kept in view
• Connect notes with bidirectional links and separate projects with Spaces
Use Cases
• Build a reusable research library without filing everything upfront
• Return to an exact passage, PDF annotation, or video segment later
• Find an idea even when the original title or wording is forgotten
• Connect recurring subjects across articles, PDFs, videos, and personal notes
• Ground AI answers in selected saved sources for verification
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