Kanboard is a free, open-source Kanban project management tool focused on simplicity and clarity. It lets you visualize tasks on a board, drag and drop between columns, limit work in progress, and filter/search with a lightweight query language. Key features:

🗂️ Subtasks, attachments, comments, and automated actions

🔍 Powerful filtering and search with custom queries

🌍 Multi‑language support for global teams

🛠️ Self‑hosted, MIT‑licensed, lightweight, and privacy‑friendly

📊 Clear visualization of workflow without unnecessary complexity

Perfect for teams who want a straightforward, no‑frills way to manage projects while keeping full control.