Foam

Foam is an open-source personal knowledge management system built on VS Code, inspired by Roam Research and Zettelkasten. It provides backlinking, graph visualization, and note connections using plain Markdown files.

It leverages VS Code's extensions and Git for versioning. It's for users who want a free, future-proof, and customizable PKM system within a powerful editor. It's free. It scores for offering a Roam-like experience without vendor lock-in, appealing to developers and open-source advocates.