Open Source Personal Knowledge Management (PKM) Tools using SCSS
A curated collection of the best open source tools for organizing personal information and building knowledge graphs. using SCSS.
Encrypted note-taking that syncs across all your devices
Stars
56,045Last commit
19 hours agoLicense
Unknown
Cross-platform note-taking app with end-to-end encryption, Markdown support, web clipping, and sync via Dropbox, OneDrive, or Joplin Cloud.
Open Source Alternative to:
Privacy-first knowledge management with block-level linking
Stars
45,921Last commit
11 hours agoLicense
AGPL-3.0
Personal knowledge management system with WYSIWYG block editing, bidirectional links, spaced repetition flashcards, a relational database, and end-to-end encrypted sync.
Open Source Alternative to:
Private workspace for notes, tasks, and databases
Stars
8,689Last commit
2 days agoLicense
Unknown
A local-first, encrypted workspace for notes, tasks, databases, and chats. Your data stays on your device, syncs peer-to-peer, and never passes through a central server.
Open Source Alternative to:
Browser and notebook combined with local-first AI
Stars
3,532Last commit
5 days agoLicense
Apache-2.0
A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.
Open Source Alternative to:
Local-first notes app with no cloud, no AI, no tracking
Stars
1,331Last commit
19 hours agoLicense
MIT
A privacy-focused, offline-first note-taking app that stores everything on your device, with Markdown, note linking, file attachments, LaTeX math, and bring-your-own sync.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
Sent