Open Source Note-Taking Tools using PostHog
A curated collection of the best open source apps for capturing and organizing notes, from plain-text and markdown editors to linked notebooks that sync across devices. using PostHog.
Privacy-first knowledge base that connects your notes
Stars
44,772Last commit
8 hours agoLicense
AGPL-3.0
Local-first, open-source knowledge management tool with bidirectional linking, outlines, flashcards, PDF annotations, and whiteboards for building a connected second brain.
Open Source Alternative to:
Local-first, Git-native personal knowledge base with AI
Stars
19,693Last commit
14 hours agoLicense
AGPL-3.0
A free, open source note-taking app built on plain Markdown files, Git version control, and direct AI model integration. No account required.
Open Source Alternative to:
Private meeting notes, no bots, files you own
Stars
9,241Last commit
5 hours agoLicense
MIT
Records system audio without joining your call, then turns rough notes into editable summaries. Audio, transcripts, and notes stay as local files.
Open Source Alternative to:
Sent – A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Sent