Open source note taking and to-do app with synchronization
...Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV.
Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other.
Community plugins list, theme list, and releases of Obsidian
The Obsidian Releases repository provides the official distribution builds and installers for Obsidian, the popular markdown-based knowledge management and personal wiki application. Obsidian itself is a powerful, offline-first note-taking tool that helps users build interconnected knowledge graphs using markdown files stored locally on their devices, with plugins and community themes for extensibility. This repository houses versioned compiled binaries and packages for multiple platforms...
Boostnote is an open source note-taking app for programmers.
Apps available for Mac, Windows, Linux, Android and iOS.
Built with Electron, React + Redux, Webpack and CSSModules.