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.
• 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
• 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

I really like the idea of turning saved content into something you can actually find and use later. Semantic search across webpages, PDFs, videos, and notes is especially useful, and keeping citations visible makes the AI Q&A much more trustworthy. The Topic Pages feature also sounds like a practical way to connect research collected over time.
The detail I appreciate here is not having to choose a permanent folder at save time - that decision is usually what stops me clipping things at all, and deferring it until the material has accumulated is the right way round. Keeping citations visible when you ask questions against your own sources is also the part most tools skip, and it is the difference between a research library and a summariser you cannot check. My one question is how well the saved copy holds up when the original page later changes or disappears.
I like the idea of saving research without having to decide exactly where everything belongs first. Keeping the original source context and citations visible also makes this especially useful for research. The Topic Pages feature sounds like a great way to connect information you may have saved at different times.
A ideia de reunir páginas da web, PDFs, vídeos e anotações em uma biblioteca pesquisável é muito interessante. Gostei especialmente de manter o contexto e as citações das fontes. Uma dúvida: a pesquisa também consegue encontrar informações relacionadas mesmo quando o usuário não lembra as palavras exatas do conteúdo salvo?

I really like the idea of turning saved content into something you can actually find and use later. Semantic search across webpages, PDFs, videos, and notes is especially useful, and keeping citations visible makes the AI Q&A much more trustworthy. The Topic Pages feature also sounds like a practical way to connect research collected over time.
The detail I appreciate here is not having to choose a permanent folder at save time - that decision is usually what stops me clipping things at all, and deferring it until the material has accumulated is the right way round. Keeping citations visible when you ask questions against your own sources is also the part most tools skip, and it is the difference between a research library and a summariser you cannot check. My one question is how well the saved copy holds up when the original page later changes or disappears.
I like the idea of saving research without having to decide exactly where everything belongs first. Keeping the original source context and citations visible also makes this especially useful for research. The Topic Pages feature sounds like a great way to connect information you may have saved at different times.
A ideia de reunir páginas da web, PDFs, vídeos e anotações em uma biblioteca pesquisável é muito interessante. Gostei especialmente de manter o contexto e as citações das fontes. Uma dúvida: a pesquisa também consegue encontrar informações relacionadas mesmo quando o usuário não lembra as palavras exatas do conteúdo salvo?
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