KeepFlash
A tool that stores web pages, PDFs, videos and notes in the same AI knowledge base. Its official website states that it supports keyword and semantic retrieval, automatically generates topic pages, and allows Codex, Claude Code or Cursor to retrieve stored materials through MCP.
Updated: 2026-10-27
What is KeepFlash?
The official website positioning of KeepFlash is "Your research. One AI knowledge library." — it integrates scattered saved articles, reports, videos and notes into a retrievable and queryable knowledge base. The official website emphasizes that it is not an ordinary browser bookmark, but preserves the original source and displays citations next to the answers, allowing you to both view AI summaries and return to the original text.
Who is it for?
- Researchers who read a large number of articles and reports every day and hope to turn scattered information into decision-making basis
- Students and writers who need to build a knowledge base for papers, courses or writing projects
- Developers who build with Codex, Claude Code or Cursor and want AI to reference internal materials
- Product and marketing teams that need to organize competitor information and industry trends
Key features
6Multi-format collection
The official website states that it supports saving web pages, uploading PDFs and files, saving YouTube videos with subtitles, and handwritten notes, all with the original source attached.
Keyword and Semantic Search
The official website states that keyword search is available for the free version, semantic search finds content by meaning, and the Plus and Pro plans support hybrid and semantic search.
Automatic Topic Pages
The official website states that Auto Wiki compiles relevant notes into topic pages, with sources cited and making it easy to open the original text one by one.
Annotation and Review
The official website states that you can directly highlight on PDFs, review video subtitles and chapters, and link context with notes.
Q&A with Citations
The official website states that you can ask the AI questions about a specific note or topic page, with the original source displayed next to the answers for easy verification.
MCP Integration
The official website states that every plan includes Agent Access, allowing Codex, Claude Code, or Cursor to retrieve and reference materials in the library via MCP.
Things to know
Usage Tips
- First, use the Chrome extension to save an article you're currently reading. The official website states that the free version can get started without binding a card.
- The free version includes 150 notes, 500MB of storage and 200 AI credits per month. Upgrade to Plus or Pro if you have a large amount of data.
- After uploading a PDF or saving a video, use the annotation feature to highlight key points, and Auto Wiki will integrate these contents into the topic page for smoother citations later.
- When asking AI a question, select a note or topic page as the basis. The official website states that this will make the answer focus on the selected materials rather than spreading out across the entire internet.
- When accessing development tools via MCP, use read-only tokens. The official website states that each Agent is assigned one token, which can be revoked at any time for convenient permission management.
Traffic & popularity
Data month Sep 2026
KeepFlash receives about 337 visits per month.
Monthly visits
12 monthsTraffic sources
- Direct39.9%
- Search38.4%
- Referrals9.3%
- Social6.6%
- Mail1.9%
- Other3.8%
Top countries
- Indonesia100.0%
Estimated from third-party traffic data.
Similar tools
SurfThe AI smart notebook produced by Deta integrates web pages, videos and PDFs into the same stream of thinking. It can automatically generate personal notes and code-free interactive charts. Data is stored locally, and the core code is open source.
YouMindAI learning and creation studio, centralizing materials such as articles, videos, and podcasts, connecting with AI queries to form your own insights, and then producing articles, slideshows, images, videos, and web pages, covering web, desktop, and mobile platforms.
CapacitiesA knowledge management application that organizes notes by objects rather than folders places notes, tasks, calendars, and AI features in the same workspace. The official version states that the free version covers major desktop and mobile platforms.
Lilys AIThe content extraction assistant operated by LilysAI, Inc. is positioned on its official website as an AI-native knowledge organization tool. It can generate summaries and explanations for videos, books, PDFs, articles and audios, and provides the capabilities of collection, subscription, export and sharing.
XinzhiA knowledge recording tool focusing on the "digital garden" concept, which the official says helps you connect fragmented knowledge to build a knowledge network. It supports card notes, voice shorthand, multi-level tags and interconnection between notes.
NoteGPTAll-in-one AI workbench that can summarize videos and PDFs, transcribe audio and video and separate speakers, generate documents, slides, spreadsheets and podcasts, and the official claims that the number of registered users exceeds 80 million.