AI Note-Taking Apps and Knowledge Bases

Lotti is a private logbook for people who want to keep their plans and a record of what actually happened together. It connects daily planning with personal notes and work history while keeping the underlying record on your devices.

AI Notebook is a desktop research notebook for asking questions about your own documents and checking the passages behind the answers. It suits people who want a local NotebookLM alternative with their research and notes in one workspace.

Octipus is a self-hosted AI workspace for people who want agents to work on code, research, and recurring tasks while keeping the results open to review. A lead agent can use tools itself or assign bounded work to specialist agents. You can inspect the sources, changes, checks, and execution records behind an answer.

Obsidian Local GPT is an AI writing assistant for people who keep their notes in Obsidian. It helps you work with selected text and related notes, using local models or a remote AI service.

Blinko is an AI note app for people who want to capture passing thoughts and find them again later. Its self-hosted edition stores notes and data in your own environment.

NoteGen is an AI note-taking app for collecting research, meeting material and ideas before organizing them into finished documents. Notes remain ordinary Markdown files, with attachments stored on your device by default.

PageLM is a self-hosted AI study platform inspired by NotebookLM. Students, educators and researchers can use it to turn their materials into resources for revision and exam practice.

MEX keeps project knowledge alongside code so engineers and their AI coding agents can share context across teammates and sessions. Architecture, requirements and decisions live in readable Markdown that travels with the repository through Git.

AppFlowy is a workspace for documents, projects and AI. Its desktop Local AI plugin connects to Ollama for local model use. AppFlowy also offers a self-hosted server deployment with language and embedding models inside your environment, including air-gapped operation. The desktop plugin and server deployment are distinct ways to use AI.

Open Paper is a research workspace for people reading papers and conducting literature reviews. It combines a PDF reader, annotations, and an AI assistant so you can examine answers alongside the papers they draw on.

Kwipu helps people query a document folder or Obsidian vault and trace answers back to their notes. It connects information across documents so you can investigate project decisions, people and their roles, or relationships between ideas.

Linkwarden is a bookmark manager for people and teams building a lasting collection of web references. It saves copies of pages so you can revisit their content after the original links disappear.

Anarlog, formerly Hyprnote, is a desktop AI meeting notetaker for people who want to keep sensitive conversations on their own hardware. It's an open-source Granola alternative that combines personal notes with meeting transcripts.

Atomic is a personal knowledge base for people who want to find connections across their notes and saved reading. It organizes Markdown notes, web clips, and articles into a knowledge graph you can search and explore.

Marginalia is a research agent for people whose papers, notes and working files are spread across a mixed document library. It reads relevant parts of the original files before writing answers with citations.

Speakr is a self-hosted transcription and note-taking app for people who need to revisit meetings, interviews or lectures. It pairs recordings with searchable transcripts and AI summaries.

HyperResearch is a research agent for Claude Code and OpenAI Codex that produces cited reports and keeps sources for later questions. It's for researchers who want to review the evidence behind a report and reuse their collected material.

LLM Wiki is a desktop AI knowledge base for people building a research library or personal reference collection. It creates lasting, linked pages from your documents and updates them as your sources change.

AFFiNE is a local-first knowledge workspace for individuals and teams who want documents, visual plans and databases together. It keeps workspace data on your disk and supports self-hosted servers through Docker. Optional AI features assist with writing and visual work alongside the local workspace. Optional AI in self-hosted workspaces requires your own provider keys; cloud provider requests go to that service.

Surf is an AI notebook for people researching across webpages, videos and documents. It brings source material and writing into one workspace so you can ask questions about what you've collected while taking notes.

ScribeDog is a Markdown editor for writers and note-takers who want AI help with documents they keep in their own folders. It shows formatted content while saving plain Markdown files that other editors can open.

TranscriptionSuite is a speech-to-text app for people recording lectures, transcribing conversations or dictating documents on their own hardware. Transcription works offline after the app and model downloads, keeping audio and transcripts local.

WeKnora is a self-hosted AI knowledge platform for teams that want to query documents, carry out tasks using them and organize them into a wiki. These functions share the same knowledge bases.

PersonalClaw is a self-hosted AI agent for one person who wants chat, ongoing tasks and personal knowledge in one web dashboard. It runs on Linux and macOS, with Docker support that also covers Windows. It's open source under MIT and is currently pre-1.0, with breaking changes expected. A one-time download supplies a tiny CPU model for offline chat without tools. Autonomous tool work needs your own Ollama model or a provider app.

Open Notebook is an alternative to Google's NotebookLM for researchers, students and professionals working with their own materials. It brings research and notes together while letting you choose what context an AI model can access.

Tessera is a self-hosted literature review workspace for researchers who want to find papers, keep reading notes and compare findings in one browser interface.

Smart Connections helps writers and researchers find earlier work related to their current Obsidian note. It surfaces relevant material without requiring a search query or links you've already made.

SoloMD is a Markdown editor for writers, researchers and developers who want plain text notes with AI assistance. It combines a Typora-style writing interface with tools for searching a note collection and letting agents work on it.

Lumina Note is a Markdown note-taking app for people who want AI help with writing and organizing a note collection. Its agent can work across the vault with your permission, while notes remain plain files you can edit and back up outside the app.

Starcat is a native macOS app for developers who want to find and evaluate repositories they've saved on GitHub. It keeps a local library and lets you choose which repositories enter a private AI knowledge base.

sage-wiki turns a document collection into a linked wiki and knowledge graph for researchers, teams, and AI agents that need reusable knowledge across tasks.

Notion Knowledge Assistant is a self-hosted Telegram bot for people who keep research, reference notes or study material in Notion. You run the Python app on your own hardware or server, including through Docker, but answers depend on OpenAI's paid cloud API. It also needs connections to Notion and Telegram, so self-hosting doesn't make it an offline assistant.

QAnything is a local knowledge base for people and teams who want to ask questions about their own documents. It supports offline operation and questions across Chinese and English document collections.

Vexa is a meeting bot and transcription API for developers adding meeting features to products and teams connecting calls to AI agents. Its bots join Google Meet, Microsoft Teams and Zoom to capture the conversation.