- [Standard Notes](https://standardnotes.org) - Simple and private notes app. Protect your privacy while getting more done. That's Standard Notes. ([Demo](https://app.standardnotes.org/), [Source Code](https://github.com/standardnotes)) `GPL-3.0``Ruby`
- [to-markdown](https://domchristie.github.io/to-markdown/) - HTML to Markdown converter written in JavaScript. ([Source Code](https://github.com/domchristie/to-markdown)) `MIT``JavaScript`
- [Trilium Notes](https://github.com/zadam/trilium) - Trilium Notes is a hierarchical note taking application with focus on building large personal knowledge bases. `AGPL-3.0``Nodejs`
- [Turtl](https://turtl.it/) - Totally private personal database and note taking app. ([Source Code](https://github.com/turtl)) `GPL-3.0``CommonLisp`