Important: licenses vary widely
Wekan, Kaneo, and Kanba are MIT and Operately is Apache-2.0, but Planka uses the PLANKA Fair Use License and Fizzy uses a fair-source, O'Saasy-style license, so both are not standard open source. Huly is EPL-2.0, Plane, Leantime, and Worklenz are AGPL-3.0 with paid editions, and OpenProject is GPL-3.0 with some security features in its Enterprise edition.
Closest to Basecamp
Plane and Huly are the closest modern all-rounders, combining projects, docs, and communication, with Plane adding AI agents and Huly adding chat and a virtual office. Leantime and OpenProject cover structured project management, and Fizzy, Wekan, Planka, and Kaneo focus on simple Kanban boards.
Inactive and very small projects
Orgnise's last commit was in July 2025, so it appears inactive, and Manage has only about 70 stars. Operately, Windshift, Ever Teams, and Kanba are young or small, so check their maturity first.
License details
Wekan, Kaneo, and Kanba are MIT, OpenProject is GPL-3.0, Redmine is GPL-2.0, Taiga is MPL-2.0, Operately is Apache-2.0, and Huly is EPL-2.0. Plane, Leantime's core, Worklenz, Ever Teams, Windshift, Orgnise, and Manage are AGPL-3.0, and Planka and Fizzy use fair-source licenses.
Maintenance status
Most projects had commits within days of this update. Kanba's last commit was in August 2026 and Orgnise's in July 2025.