Open Source Note-Taking & Writing Apps

AppFlowy

AppFlowy-IO/AppFlowy

Bring projects, wikis, and teams together with AI.

AFFiNE

toeverything/AFFiNE

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together.

Marktext

marktext/marktext

A simple and elegant markdown editor, available for Linux, macOS and Windows.

Joplin

laurent22/joplin

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

SiYuan

siyuan-note/siyuan

An open-source, privacy-first, self-hosted knowledge workspace where humans and AI agents work together 开源、隐私优先、自托管的知识工作空间，让人与智能体在此协作.

Logseq

logseq/logseq

A privacy-first, open-source platform for knowledge management and collaboration.

Trilium

TriliumNext/Trilium

Build your personal knowledge base with Trilium Notes.

Super Productivity

super-productivity/super-productivity

Super Productivity is an advanced todo list app with integrated Timeboxing and time tracking capabilities.

Notesnook

streetwriters/notesnook

A fully open source & end-to-end encrypted note taking alternative to Evernote.

Electron Builder

electron-userland/electron-builder

A complete solution to package and build a ready for distribution Electron app with “auto update” support out of the box.

Zettlr

Zettlr/Zettlr

Your One-Stop Publication Workbench.

Vnote

vnotex/vnote

A pleasant note-taking platform in native C++.

Note Gen

codexu/note-gen

Capture first. Organize later. A local-first Markdown app that turns scattered records into clear notes with AI.

Dust

bootandy/dust

A more intuitive version of du in rust.

Waybar

Alexays/Waybar

Highly customizable Wayland bar for Sway and Wlroots based compositors.

Lepton

hackjutsu/Lepton

Democratizing Snippet Management (macOS/Win/Linux).

Anarlog

fastrepl/anarlog

Open source Granola AI Alternative.

Anytype

anyproto/anytype-ts

Official Anytype client for MacOS, Linux, and Windows.

MiaoYan

tw93/MiaoYan

Lightweight Markdown app to help you write great sentences.

Fsnotes

glushchenko/fsnotes

Fast Markdown note-taking app for Mac and iPhone.

massCode

massCodeIO/massCode

A free, open-source developer workspace. Snippets, notes, HTTP requests, calculations, and dev tools in one local-first app.

Purocean

purocean/yn

A highly extensible Markdown editor featuring version control, AI Copilot, document annotations, mind maps, document encryption, executable code snippets, chart embedding, HTML applets, plugins, and…

Standard Notes

standardnotes/app

Think fearlessly with end-to-end encrypted notes and files.

Taskwarrior

GothenburgBitFactory/taskwarrior

Taskwarrior - Command line Task Management.

QOwnNotes

pbek/QOwnNotes

QOwnNotes is a plain-text file notepad and todo-list manager with Markdown support and Nextcloud / ownCloud integration.

MarkEdit

MarkEdit-app/MarkEdit

Just like TextEdit on Mac but dedicated to Markdown.

Planify

alainm23/planify

Task manager with Todoist, Nextcloud & CalDAV support designed for GNOME.

Floral Notepaper

Achilng/floral-notepaper

花笺，轻量优雅的跨平台桌面便签工具，支持 Markdown 编辑与预览.

Tagspaces

tagspaces/tagspaces

TagSpaces is an offline, open source, document manager with tagging support.

Saber

saber-notes/saber

The cross-platform open-source app built for handwriting.

Open Knowledge

inkeep/open-knowledge

Beautiful, AI-native markdown IDE and LLM wiki.

Notes

nuttyartist/notes

Fast and beautiful note-taking app written in C++.

Dnote

dnote/dnote

A simple command line notebook.

Mindforger

dvorka/mindforger

Thinking notebook and Markdown editor.

Zennotes

ZenNotes/zennotes

Keyboard-first local Markdown notes with Vim motions, diagrams, and MCP integration.

Manuskript

olivierkes/manuskript

A open-source tool for writers.

MarkFlowy

drl990114/MarkFlowy

A high-performance, cross-platform editor that supports WYSIWYG Markdown and general text editing.

Anubias

4xmen/anubias

Developed mobile apps so easy and native with GUI.

Edgeever

tianma-if/edgeever

Open-source, AI-native knowledge base & Evernote alternative with native MCP.

Onenote

patrikx3/onenote

Linux Electron Onenote - A Linux compatible version of OneNote.

Kanri

kanriapp/kanri

Modern offline Kanban board app for Windows, MacOS and Linux made with Tauri and Nuxt.

Sleek

ransome1/sleek

todo.txt manager for Linux, Windows and Mac, free and open-source (FOSS).

TidGi Desktop

tiddly-gittly/TidGi-Desktop

TidGi is an privacy-in-mind, automated, auto-git-backup, freely-deployed knowledge management Desktop note app, based on Tiddlywiki, with REST API for web-clipping and Anki connect.

Poi

poooi/poi

Scalable KanColle browser and tool.

AI Novel Writer

EthanYoQ/AI-Novel-Writer

AI 小说创作软件：把灵感、角色、世界观、大纲、章节写作、审稿和修稿组织成可控流程；提供 Windows/macOS 桌面版，支持本地和在线模型。AI Novel Writing Software: Organizes inspirations, characters, worldbuilding, outlines, chapter drafting, review, and…

Beaver Notes

Beaver-Notes/Beaver-Notes

Open-source, local-first workspace for notes, projects, and meetings.

Imgui Markdown

enkisoftware/imgui_markdown

Support development of imgui_markdown through GitHub Sponsors or Patreon Note: development happens on the dev branch and is merged to the main branch when complete.

Inno Agent

hhyqhh/inno-agent

An open-source personal learning agent with three-layer memory (learner profile / wiki knowledge base / cross-conversation recall), a proactive scheduler, personal IM channels, and a…