Best Open-Source Note-taking & Knowledge

41 tools found

AppFlowy

AppFlowy is an open-source, local-first alternative to Craft and Notion that provides block editing, Kanban boards, and offline databases with zero fees.

78.1kLinuxmacOSWindows6d ago

AGPL-3.0Personal Notes

Joplin

Joplin is an open-source, encrypted note-taking app that replaces Evernote with offline-first Markdown, terminal CLI access, and flexible self-hosted sync.

57.0kLinuxmacOSWindows1d ago

MITPersonal Notes

Logseq

Logseq is an open-source, local-first outliner and personal knowledge base that replaces Roam Research with private, bidirectional markdown notes.

45.5kLinuxmacOSWindows2d ago

AGPL-3.0Personal Knowledge Management (PKM)

Open-Notebook

Open-Notebook is a self-hosted alternative to NotebookLM for document research, offering multi-model support, private data storage, and custom podcasts.

41.5kWeb2d ago

MITPersonal Knowledge Management (PKM)

Trilium Notes

Trilium Notes is an open-source personal knowledge base replacing Evernote with deep hierarchical note trees, note cloning, and private local storage.

38.7kLinuxmacOSWindowstoday

AGPL-3.0Personal Notes

Hoarder

Hoarder is an open-source bookmark and read-it-later tool replacing Raindrop with self-hosted privacy, local AI tagging, and full-page web archiving.

30.2kLinuxmacOSWindows2d ago

AGPL-3.0Bookmarks & Read-it-Later

EasyP

Promoted

The modern standard for Protobuf workflows

Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.

lintgeneratebreakingeasyp.lock

easyp.tech

Tolaria

Tolaria is an open-source desktop markdown note-taking app with built-in Git versioning, opinionated note types, and local AI agent context.

20.4kLinuxmacOSWindowstoday

AGPL-3.0Personal Notes

Foam

Foam turns VS Code into an open-source personal knowledge base with bi-directional wikilinks, graph navigation, and Git-backed Markdown storage.

17.5kLinuxmacOSWindows5d ago

MITPersonal Knowledge Management (PKM)

Scalar

Open-source offline-first API platform and Postman alternative that turns OpenAPI specs into interactive documentation and local request runners.

16.4kDockerLinuxmacOStoday

MITDocs & Wikis

Notesnook

Notesnook replaces Evernote with an open-source note-taking app that provides multi-device sync, rich formatting, and local zero-knowledge encryption.

14.9kLinuxmacOSWindowstoday

GPL-3.0Personal Notes