Alternatives to turtl

Privacy-focused note taking app

Knowledge base that works on top of a local folder of plain text Markdown files

Privacy-first, open-source platform for knowledge sharing and management

End-to-end encryption software

Privacy-focused note-taking app

Multi-platform client-side cloud file encryption tool

Email client

Free, open-source, and completely encrypted notes app

Desktop sync client for Nextcloud software products

Hierarchical note taking application

Note taking app

Open-source project and knowledge management tool