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CLUSTER KNOWLEDGE-MANAGEMENT-PERSONAL · 15 ENTRIES · EARLIEST ENTRY 2026-08-12

AI personal knowledge management apps

This cluster consists of personal knowledge management apps that store notes and documents and let users query the entire knowledge base through a conversational AI assistant. The dated history before the index start has only 1 entry, so the cluster's timeline shape is too thin to read — it predates the index or its members are undated. Among traction leaders, NodAgent leads with 3 stars, followed by second-brain-graphrag with 1 star, and 2nd-Mind with 0 stars.

Entry timeline

ENTRY TIMELINE

JUL 2024: 1AUG 2026: 3SEP 2026: 6OCT 2026: 5
JUL 2024OCT 2026

Each bar is the month a member carries, which is a creation date where the source published one and a crawl date otherwise. Nothing in the index was found before 11 August 2026, and coverage broadened sharply on 14–15 August, so a bar from then on reports how much we found that month, not how much was built; an earlier bar reports how far back a member's own source dated it — not how long we have been watching.

Members by activity

Activity signals, not revenue.

Build origin · 2 ai-built · 3 hand-coded · 10 unlabelled

Operator · 10 hobby · 1 indie · 1 commercial · 3 unlabelled

Two labels per entry, never collapsed into one: how it was built, and who stands behind it. Counted over the 15 listed below. Unlabelled means nothing has decided yet — not that the answer is small.

  1. 01NodAgent3★20 days—hobbyMulti-agent knowledge management app with chat interface that answers questions from personal or team documents using retrieval and citations.
  2. 02myai0★today—hand-codedhobbyPersonal knowledge base web app that stores documents and answers questions through retrieval-augmented AI agents.
  3. 032nd-Mind0★19 days—hobbyChat-based personal memory app that stores notes, links and tasks and retrieves them by meaning, time, person, or category with transparent AI decisions.
  4. 04second-brain-ai0★8 days—hobbyPersonal knowledge management app that organizes notes and documents, and lets users chat with their entire knowledge base through an AI assistant.
  5. 05knowvault0★2 days—hobbyPersonal knowledge management app that stores notes and answers questions about them through a conversational AI assistant.
  6. 06personal-knowledge-rag0★8 days—hobbyPersonal knowledge assistant that answers questions over a user's notes, ingests new content, and sends daily summaries.
  7. 07whoszoo0★18 days—indiePersonal AI assistant that remembers details about people from conversations and stores notes in the user's own cloud storage for future reference.
  8. 08Capacities – Notes & PKM0★1 molivecommercialMobile companion app for a personal knowledge management system, enabling quick capture, search, and an integrated AI assistant linked to saved notes.
  9. 09Cortexos0★6 days—AI-powered personal knowledge management app that organizes notes, tasks, projects, decisions,and relationships into a single workspace.
  10. 10thought-loom1★1 mo—hobbyPersonal knowledge graph that links and clusters notes and answers questions across them.
  11. 11Lumina0★22 days—hand-codedAI-first personal knowledge center that automatically tags, summarizes, and classifies notes, bookmarks, and files with semantic search and chat.
  12. 12Chrono-AI0★1 moliveai-builthobbyPersonal knowledge management app that indexes Google Drive files and change history, then answers natural-language questions with cited references.
  13. 13knowbase0★1 molivehand-codedhobbyPersonal knowledge base application with document management and AI chat for organizing information.
  14. 14Digital Brain - Your Personal Knowledge Base0★unknownliveai-builthobbyA personal knowledge base that lets users upload documents, search with AI, and chat with their content.
  15. 15SHIRETA — 知りたいを、知れたに。0★unknownliveAI-powered personal knowledge app that helps users research and organize topics of interest into structured summaries.

Ranked by traction, highest first, and paged 20 at a time — this is a window on the cluster, never the whole of it. Ties are broken by a stable id so a product cannot appear on two pages or fall between them. Browse every cluster.