ToolVitals

Notes & Knowledge

πŸ““

Notes & Knowledge Base

Personal notes, knowledge bases, notebooks, and writing tools.

74 tools tracked, 50 scored verdicts

Best Notes & Knowledge Base tools by public signals

These picks are computed from scored public evidence. Use the openness column in the ranking to separate OSI-approved, source-available, open-core, proprietary, and unverified-license tools.

Best overallAnarlog97 scoreLicense-safe pickAnarlogOSI-approved OSSFastest shippingAnarlog97 shipping

Use Case Rankings

Ordered by ToolVitals score, then health, shipping, confidence, GitHub stars, and name.

#ToolHealthShippingOpennessStarsScoreStatus
01Anarlog
Open source Granola AI alternative.
9797OSI-approved OSS9.6k97Active
02Trilium.cc
Personal knowledge base
9796OSI-approved OSS38.6k97Active
03Trilium
Build your personal knowledge base with Trilium Notes
9796OSI-approved OSS38.6k97Active
04Minutes
Privacy-first conversation memory layer with AI search.
9697OSI-approved OSS1.6k96Active
05Basic Memory
AI conversations that actually remember. Never re-explain your project to your AI again. Join our Discord: https://discord.gg/tyvKNccgqN
9695OSI-approved OSS4.4k96Active
06SiYuan
A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
9597OSI-approved OSS47k96Active
07Notesnook
A fully open source & end-to-end encrypted note taking alternative to Evernote.
9695OSI-approved OSS14.9k95Active
08Logseq
A privacy-first, open-source platform for knowledge management and collaboration. Download link: http://github.com/logseq/logseq/releases. roadmap: https://logseq.io/p/NX4mc_ggEV
9694OSI-approved OSS45.4k95Active
09Memos
Open-source, self-hosted note-taking tool built for quick capture. Markdown-native, lightweight, and fully yours.
9693OSI-approved OSS64.2k95Active
10Poznote
Personal note-taking and documentation platform.
9596OSI-approved OSS97395Active
11Athenaeum
Open source knowledge management pipeline.
9596OSI-approved OSS1295Active
12note-gen
Cross-platform Markdown AI note-taking software.
9595OSI-approved OSS12.9k95Active
13QOwnNotes
QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.
9595OSI-approved OSS5.9k95Active
14Saber
The cross-platform open-source app built for handwriting
9594OSI-approved OSS5k95Active
15AFFiNE
There can be more than Notion and Miro. AFFiNE(pronounced [Ι™β€˜fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.
9593OSI-approved OSS74k94Active
16SilverBullet
An open source personal productivity platform built on Markdown, turbo charged with the scripting power of Lua
9593OSI-approved OSS6.4k94Active
17Butterfly
Powerful, minimalistic, cross-platform, opensource note-taking app.
9394OSI-approved OSS2.1k94Active
18massCode
Open-source developer workspace for snippets, notes, calculations, and dev tools.
9391OSI-approved OSS7.1k92Active
19Standard Notes
Think fearlessly with end-to-end encrypted notes and files. For issues, visit https://standardnotes.com/forum or https://standardnotes.com/help.
9190OSI-approved OSS6.7k91Active
20Eidos
An extensible framework for Personal Data Management.
8794OSI-approved OSS3.2k90Active
21Understand Anything
Interactive knowledge base for code and documents.
9187OSI-approved OSS88.9k89Active
22Freeplane
Open-source mind mapping and knowledge organization application.
9187OSI-approved OSS4.4k89Active
23NoteDiscovery
Your Self-Hosted Knowledge Base
9187OSI-approved OSS2.9k89Active
24Glyph
Private desktop workspace for notes, documents, and ideas with built-in AI tools.
8692OSI-approved OSS18489Active
25iwe
Markdown memory system for you and your AI agent
8789OSI-approved OSS1.8k88Active
26OpenWriter
Markdown-native writing surface for AI agents.
8691OSI-approved OSS3688Active
27FSNotes
Notes manager for macOS/iOS
8273OSI-approved OSS7.6k79Active
28Omni-Notes
Open-source note-taking application for Android.
7880OSI-approved OSS2.8k79Active
29TideMind
AI-connected note and knowledge management tool.
7170OSI-approved OSS1171Warning
30Ephe
Ephemeral markdown paper for plain Markdown users.
6857OSI-approved OSS59064Warning
31Atomic
Self-hosted, semantically connected personal knowledge base.
6562OSI-approved OSS2k64Warning
32Noeko
Self-hostable intelligent knowledge base.
6258OSI-approved OSS661Warning
33Meetily
Privacy first, AI meeting assistant with 4x faster Parakeet/Whisper live transcription, speaker diarization, and Ollama summarization built on Rust. 100% local processing. no cloud required. Meetily (Meetly Ai - https://meetily.ai) is the #1 Self-hosted, Open-source Ai meeting note taker for macOS & Windows.
6841OSI-approved OSS32.3k57Warning
34dnote
Simple command-line notebook.
5836OSI-approved OSS3.1k50Warning
35TidGi Desktop
Privacy-in-mind knowledge management desktop note app with auto Git backup and web-clipping support.
5734OSI-approved OSS2k47Warning
36Lokus
Modern note-taking application with powerful editing capabilities.
5141OSI-approved OSS83047Warning
37Blinko
An open-source, self-hosted personal AI note tool prioritizing privacy, built using TypeScript .
4831OSI-approved OSS11.1k41Critical
38Clearly
Markdown editor and knowledge base for Mac, iOS and iPadOS.
4633OSI-approved OSS1.2k41Critical
39Lydie
Modern writing workspace for structured documents, notes, and knowledge.
2810OSI-approved OSS4921Critical
40Lumen
A free, open-source note-taking app that syncs with markdown files in your GitHub repository
340OSI-approved OSS72020Critical
41Owlistic
πŸ¦‰ Free open-source notetaking app with real-time sync πŸ”„βš‘οΈπŸš€
340OSI-approved OSS43120Critical
42Surf
Personal AI notebooks for files and webpages with note generation.
232OSI-approved OSS3.6k15Critical
43Lumina Note
Markdown note-taking app with live preview, bidirectional links, and AI assistant.
214OSI-approved OSS91614Critical
44Spool
Local search for Claude Code sessions, Codex history, GitHub stars, and other developer knowledge sources.
206OSI-approved OSS59314Critical
45SwarmVault
Local-first RAG knowledge base compiler with MCP server support.
164OSI-approved OSS73211Critical
46Notabase
Powerful and easy-to-use note-taking app for networked thinking
160OSI-approved OSS91510Critical
47Notty
An open source, minimal AI powered note taking app and powerful markdown editor
160OSI-approved OSS5079Critical
48Eclaire
Local-first, open-source AI assistant for your data. Unify tasks, notes, docs, photos, and bookmarks. Private, self-hosted, and extensible via APIs.
112OSI-approved OSS9267Critical
49GitJournal
Mobile-first note-taking app integrated with Git.
110OSI-approved OSS4.2k7Critical
50notes
Fast and beautiful note-taking app written in C++.
100OSI-approved OSS4.3k6Critical

Evidence Watch

Tracked tools with useful public signals but no verdict score yet.

PGuide Docs

Open-source knowledge base for CS self-study and development.

β€” confidence

Wreeto

Open-source note-taking, knowledge management, and wiki system.

β€” confidence

Not Scored

Tracked for context, but excluded from rankings because comparable open/source-visible evidence is unavailable.

AnyType

Official Anytype client for MacOS, Linux, and Windows

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Athens Research

Open-source networked thought and note-taking app.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Bangle

Web-only WYSIWYG note-taking app that saves notes locally in Markdown.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Joplin

Joplin - the privacy-focused note taking app with sync capabilities for Windows, macOS, Linux, Android and iOS.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Journiv

Self-hosted private journaling app.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Knowledge Base

Local-first knowledge base desktop app with Markdown editing, full-text search, knowledge graphs, and sync support.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Liha

Local-first second brain for knowledge capture and retrieval.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Memex

Browser extension to curate, annotate, and discuss web content.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

MyNoteBookLm

Open-source note-taking and podcast generation app.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

Nexus

Lightweight open-source knowledge base program.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.

TiddlyWiki

A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.

ToolVitals does not score proprietary or unknown-license tools because their public source evidence is not comparable to open/source-visible projects.