Best Knowledge Management & PKM Apps in 2026

Heptabase is a visual note-taking tool that helps you learn complex topics. Make sense of your learning, research, and projects with a visual workspace.

Obsidian is a powerful and extensible knowledge base that works on top of your local folder of plain text files. Build your second brain with bidirectional linking.

Org Mode is a major mode for GNU Emacs for keeping notes, maintaining to-do lists, planning projects, authoring documents, and more with a fast and effective plain text system.

Tinderbox is a workbench for your ideas and plans. It helps you analyze and understand them today, and adapts to your changing needs and growing knowledge.

Capacities is more than a note-taking app. It's a calm place to make sense of the world and create amazing things, like an artist's studio for all your knowledge and ideas.

Sublime is a knowledge tool that sparks creativity. Save anything that makes you go 'whoa' and discover hand-curated, related ideas from other users.

Tana is a powerful note-taking tool built around supertags and a revolutionary outliner interface.

WikidPad is a long-running desktop wiki notebook for storing ideas, TODOs, reference notes, and interlinked personal knowledge in local files.

Anytype is a local-first, E2E encrypted tool for organizing your life. Build custom workflows with blocks and object types.

CherryTree is an open-source hierarchical note-taking app featuring rich text, syntax highlighting, embedded files, and local storage in single-file or multi-file formats.

Logseq is a privacy-first, open-source platform for knowledge management and collaboration. Your data stays local.

Memos is a privacy-first, self-hosted note-taking and lightweight knowledge-base tool built for fast capture, Markdown-native writing, and full data ownership.

NotebookLM is Google's AI research tool that analyzes your documents and sources to help you understand, synthesize, and create content with source-grounded responses.

Reor is an AI-powered note-taking app that automatically organizes your markdown notes using local LLMs and vector databases for intelligent linking and search.

Saner.AI is an AI-powered note-taking app that automatically organizes your notes, creates connections, and helps you find information faster.

SiYuan is a privacy-first personal knowledge management system with block references, bidirectional links, Markdown WYSIWYG editing, offline use, and optional paid sync capabilities.

zk is a command-line tool helping you to maintain a plain text Zettelkasten or personal wiki with powerful search, filtering, and editor integration.

Dendron is an open-source, local-first, markdown-based note-taking tool built on top of VSCode. It combines the flexibility of Roam-like bidirectional links with a powerful hierarchical organization system.

IWE is a local-first, open-source markdown note-taking tool that works with VSCode, Neovim, Zed, Helix, and other text editors, featuring graph transformations and powerful commands.

RemNote combines note-taking with spaced repetition flashcards, making it ideal for students and lifelong learners who want to retain what they learn.

Roam Research is a note-taking tool for networked thought. As easy to use as a document. As powerful as a graph database.

SilverBullet is an open-source, self-hosted, browser-based personal knowledge management platform built on Markdown, local-first principles, and powerful Lua scripting.

TheBrain is a visual knowledge management tool that maps your ideas as a dynamic network instead of folders, with AI-powered brainstorming, a full REST API, and cross-platform sync.

TreeSheets is an unusual open-source note app that lets you organize text in zoomable hierarchical grids, combining aspects of outlines, spreadsheets, and structured notes.

TriliumNext Notes is an open-source hierarchical note-taking application focused on large personal knowledge bases, deep structure, scripting, and self-hosted sync.

Zim is an open-source desktop wiki used to maintain collections of linked notes, journals, task lists, and attachments in plain text files.

BasKet Note Pads is a KDE note-taking and information-organizing app built around hierarchical baskets, mixed-content notes, tags, search, export, and local data ownership.

QOwnNotes is an open-source desktop note-taking app for plain-text and Markdown notes, with strong integration for Nextcloud and other file-based workflows.

TiddlyWiki is a free, open-source non-linear notebook and personal wiki that stores notes in a highly flexible, hackable format.

Tomboy-ng is a cross-platform continuation of the classic Tomboy note app, focused on linked notes, fast local storage, search, and simple desktop note management.

Edna is a note-taking application designed for developers and power users, featuring markdown support, code highlighting, and a minimal interface.

Notesium is a free, open-source system for bi-directional linked Markdown notes with an interactive force-directed graph, Vim integration, and a tiny 8MB binary.

Springpad was a consumer note-taking and organization app for notes, lists, products, recipes, and clipped web content, with sync across web and mobile devices.

MyMemo is an AI knowledge management app for saving articles, links, screenshots, videos, documents, images, audio, and notes in one searchable personal knowledge base. It combines web capture, AI summaries, knowledge-base chat, and MemoCast audio reviews for people who want to resurface what they save.