Topsi Project Manager is a simple Kanban board software built with Electron and Vue.js. It’s free and open source under the AGPLv3 license.

Nta:

• No Internet required, no registration needed
• Simple Kanban board
• Organize your notes in multiple milestones
• Drag & drop notes
• Tags
• Search for notes by title or tag
• Image attachment
• Export and import projects (in JSON format)
• Dark mode and customization (WIP, more customizations are coming)
• 100% free and open source