Standard Notes

Web-based collaborative LaTeX editor.

Cross-platform hierarchical note taking application with focus on building large personal knowledge bases (fork of Trilium Notes).

Knowledge base that works with a SQLite db file.

Collaborative note taking, wiki and documentation platform that scales.

Note taking application with markdown editor and encryption support for mobile and desktop platforms. Runs client-side and syncs through your own Nextcloud instance or similar (alternative to Evernote).

Note-taking application optimized for people with a hacker mindset.