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Trello
Owner: Atlassian
Company based in the USA (Cloud Act).
Closed source (proprietary).
Data often used for ad targeting or AI training.
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Wekan
Open Source Trello clone, very lightweight and efficient.
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Kantree
Flexible French platform for managing all types of projects.
No-Code France
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Planka
Modern, elegant and real-time Kanban board.
Open Source Kanban Sovereign if hosted
These solutions are governed by GDPR. By choosing Open Source tools, you also guarantee the ability to host your own data.