Note-taking Apps Open Source Tools

Alternative toNotion

Local-first workspace combining docs, whiteboards, and notes

• 73,684 GitHub stars
• MITLicence MIT

Alternative toGoogle Keep

Self-hosted note timeline with per-memo privacy, zero telemetry

• 63,934 GitHub stars
• MITLicence MIT

Alternative toEvernote

Open source note-taking app with Markdown and sync support

• 56,815 GitHub stars

Alternative toNotion

Block-based notes with backlinks and end-to-end encrypted sync

• 46,858 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toRoam Research

Privacy-first knowledge base with outliner and graph view

• 45,303 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toNotion

Team wiki and knowledge base with realtime collaboration

• 40,988 GitHub stars

Alternative toNotion

Self-hosted hierarchical notes with scripting and note encryption

• 38,433 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toQuizlet

Spaced repetition flashcards that make memory reliable

• 32,187 GitHub stars
• AGPL-3.0-or-laterLicence AGPL-3.0-or-later

Alternative toConfluence

Self-hosted collaborative wiki and documentation tool

• 22,041 GitHub stars
• AGPL-3.0Licence AGPL-3.0

Alternative toNotion

Organize your notes with Markdown and Git integration

• 20,116 GitHub stars
• AGPL-3.0Licence AGPL-3.0