- [Oddmuse](https://oddmuse.org/) - A simple wiki engine written in Perl. No database required. ([Source Code](https://github.com/kensanata/oddmuse)) `GPL-3.0``Perl`
- [Plainpad](https://alextselegidis.com/get/plainpad/) - A modern note taking application for the cloud, utilizing the best features of progressive web apps technology. ([Demo](https://alextselegidis.com/try/plainpad/), [Source Code](https://github.com/alextselegidis/plainpad)) `GPL-3.0``PHP`
- [SilverBullet](https://silverbullet.md/) - Note-taking application optimized for people with a hacker mindset. ([Demo](https://play.silverbullet.md/), [Source Code](https://github.com/silverbulletmd/silverbullet), [Clients](https://silverbullet.md/Libraries)) `MIT``Docker/Deno`
- [Standard Notes](https://docs.standardnotes.com/self-hosting/getting-started) - 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/app)) `GPL-3.0``Ruby`
- [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/Docker/K8S`
- [turndown](https://mixmark-io.github.io/turndown/) - HTML to Markdown converter written in Javascript. ([Source Code](https://github.com/mixmark-io/turndown)) `MIT``Javascript`