European alternatives to Obsidian

Obsidian is a knowledge management tool that keeps notes as plain Markdown files on your own disk and links them to one another, so a personal wiki grows out of ordinary writing. The graph view, the plugin ecosystem and local storage appeal to researchers, writers and developers who want notes that stay readable for decades and are not locked to one application.

Local files answer part of the sovereignty question, but sync, publishing and any shared features send data to a server, and the jurisdiction question comes straight back. Organisations buying software also want a supplier they can contract with in the EU. A European alternative to Obsidian can keep that local first character. Joplin stores notes in an open format with several sync targets, Anytype is built around linked objects, and Notefox is a lighter option for notes in the browser.