Obsidian
Local-first markdown notes with a powerful link graph.
Desktop AppFree planmacOS, Windows
4.8Visit
Category
Best Personal Knowledge Management software, apps and tools
31 curated resources for personal knowledge management, online and offline.
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
Personal knowledge management (PKM) is the habit of capturing what you read, learn and think, then connecting it so you can find and reuse it later. A good PKM app makes capture fast, links ideas to each other and keeps notes yours, ideally in plain files you can export.
The tools below range from linked-note apps and outliners to read-it-later services and AI tools that summarise and resurface what you saved. If you are starting out, pick one place to capture everything, add links between notes as you go, and review weekly rather than building a perfect system on day one.
Notion
One workspace for notes, docs, projects and wikis.
Web AppFree planWeb, iOS
4.7Visit
Readwise Reader
One inbox for articles, PDFs, newsletters and highlights.
Web AppPaid but AffordableWeb, iOS
4.7Visit
claude-obsidian
Self-organizing AI second brain for Obsidian and Claude Code — drop any source and Claude reads, links and files it.
AI ToolFreemacOS, Windows
4.8Visit
Obsidian Second Brain
Persistent memory for Claude Code and six other CLI agents, stored as plain markdown in your Obsidian vault.
AI ToolFreemacOS, Windows
4.7Visit
Logseq
A privacy-first, open-source knowledge base that works on local files.
Desktop AppFreemacOS, Windows
4.6Visit
Reor
AI powered personal knowledge management.
Web AppFree planWeb
4.5Visit
Bear
Fast, elegant markdown notes for Apple devices.
iOS AppFree planiOS, macOS
4.6Visit
RemNote
Notes and spaced repetition flashcards in one place.
Web AppFree planWeb, iOS
4.5Visit
Copilot for Obsidian
Run AI agents like Claude Code, Codex and OpenCode inside Obsidian.
OtherFree planCross-Platform
4.5Visit
Dataview
A data index and query language over the Markdown files in your Obsidian vault.
OtherFreeCross-Platform
4.5Visit
Excalidraw for Obsidian
Edit and view Excalidraw drawings inside Obsidian.
OtherFreeCross-Platform
4.5Visit
Kanban for Obsidian
Create Markdown-backed Kanban boards in Obsidian.
OtherFreeCross-Platform
4.5Visit
Smart Connections
Find related notes while you write, using a local embedding model with no API key.
OtherFree planCross-Platform
4.5Visit
Tasks for Obsidian
Task management for your Obsidian knowledge base.
OtherFreeCross-Platform
4.5Visit
Templater
A powerful template plugin for Obsidian.
OtherFreeCross-Platform
4.5Visit
Reflect
Fast, encrypted networked notes with AI built in.
Web AppPaid but AffordableWeb, iOS
4.5Visit
Kipi System
Your AI brain, externalized — remembers everything you do and becomes any role you need.
FrameworkFreemacOS, Windows
4.5Visit
BrainAPI
A knowledge-graph memory layer for AI agents.
AI ToolFree planWeb, Cross-Platform
4.4Visit
Tana
Structured notes where every tag behaves like a database.
Web AppFree planWeb, macOS
4.4Visit
Recall
Turn anything you read or watch into a knowledge base you remember.
Browser ExtensionFree planWeb, Chrome
4.4Visit
Wiki Graph
A CLI that distils books and long documents into searchable, source-linked knowledge graphs.
AI ToolFreemacOS, Windows
4.4Visit
Glasp
Highlight the web and keep everything you learned.
Browser ExtensionFreeChrome, Safari
4.4Visit
People Context
Local-first memory for AI agents about the people in your life.
AI ToolFreemacOS, Windows
4.4Visit
hypernovum
Agent Ops for your second brain — a 3D IDE for Obsidian built on Three.js.
Desktop AppFreemacOS, Windows
4.3Visit
Compass
Native, local-first knowledge graph engine for code and project artifacts.
FrameworkFreemacOS, Linux
4.3Visit
Glyph
A private desktop workspace for notes, documents and ideas, with Markdown and built-in AI.
Desktop AppFreemacOS
4.3Visit
Obsidian Vault Intelligence
An Obsidian plugin that adds AI-powered intelligence to your vault.
OtherFreeCross-Platform
4.3Visit
OSK System
A source-grounded MCP memory runtime and Obsidian-compatible vault template for LLM agents.
AI ToolFreeCross-Platform
4.3Visit
Building a Second Brain
Tiago Forte's course and method for organising digital notes.
CourseExpensiveWeb
4.2Visit
Notion Second Brain Template
A ready-made PARA workspace for Notion.
TemplateFree planWeb, Cross-Platform
4.2Visit
Personal Knowledge Management tools: common questions
- What are the best personal knowledge management tools?
- The highest-rated personal knowledge management picks in the directory right now are claude-obsidian, Obsidian and Notion. Each one is checked by hand, and the full list above is sorted by our recommendation.
- What is the best free personal knowledge management tool?
- claude-obsidian and Obsidian Second Brain are the top-rated completely free options. If a free plan is enough, Obsidian is also worth a look.
- How many personal knowledge management tools are listed?
- 31 personal knowledge management resources are listed: 17 completely free, 11 with a free plan and 3 paid. New ones are added as they are checked.
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