Joplin

Joplin is an open-source note-taking app with end-to-end encryption. Organize notes with notebooks and tags, write in Markdown.

Features:

• End-to-end encryption for all notes
• Markdown with live preview
• Sync via Nextcloud, Dropbox, and others
• Import from Evernote or plain text
• Web clipper extension
• Windows, macOS, Linux, iOS, Android

Notes encrypt on your device before syncing, only you can read them.