Capacities is a note-taking and 📝personal knowledge management app built around objects, made by an independent, user-funded European software company. Its homepage says Capacities "turns your ideas into connected objects, not files buried in folders." According to the company's facts page, work on the product started in 2020 and it entered public beta in 2022. Capacities runs on the web, Windows, macOS, Linux, iOS and Android.
The facts page names Steffen Bleher and Michael von Hohnhorst as founders and describes Capacities as a bootstrapped software company with no outside investors. In Capacities, everything a user cares about becomes an object; objects have structure and properties and connect to each other. The product includes one 📝daily note per day, a 📝graph view of the whole knowledge network, and 📝backlinks showing every object that references the one open. An AI assistant opens in a chat beside any page, and the changes it proposes need the user's review unless auto-approve is on. User data is stored in certified EU data centers. As of November 2026, the pricing page lists three plans: Capacities Basic, which is free and excludes the AI assistant, and Capacities Pro and Capacities Believer, which each include a light monthly AI budget.