Joplin - the secure note taking and to-do app with synchronisation capabilities for Windows, macOS, Linux, Android and iOS.

A privacy-first, lightweight note-taking service. Easily capture and share your great thoughts.

A personal knowledge management and sharing system for VSCode

A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.

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

📝 ‎ A web-based notes app for developers.

Think fearlessly with end-to-end encrypted notes and files. For issues, visit https://standardnotes.com/forum or https://standardnotes.com/help.

Browser extension to curate, annotate, and discuss the most valuable content and ideas on the web. As individuals, teams and communities.

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

An open source, markdown-based, self-hosted note taking webapp.

📒 Self hosted note taking app stored on S3

Markdown as a platform

TidGi is an privatcy-in-mind, automated, auto-git-backup, freely-deployed Tiddlywiki knowledge management Desktop note app, with local REST API. 「 太记 」是一个基于「 太微 TiddlyWiki 」的知识管理桌面应用，能保护隐私内容、高级自动化、自动Git云备份、部署为博客，且可通过RESTAPI与Anki等应用连接。（迭代开发中欢迎试用，开发进度见下方链接）(Under active development, see website below for details)

Yarle - The ultimate converter of Evernote notes to Markdown

Cross-platform full-featured mind mapping and outline app based on electron.

A second brain for all your knowledge, thoughts, and ideas.

An open-source knowledge management app.

Lightweight Knowledge Base and Feed Reader.

In-browser knowledge base on top of local plain-text files

A beautiful, minimalistic note-taking app for personal sensemaking.