Open source / Chrome extensionPublic repository
A focused workspace for every new tab.
Zentaplan is an offline-first Chrome New Tab extension that gives you a focused workspace every time you open a new tab.
Context
A new tab with somewhere to put the day.
Zentaplan combines web shortcuts, daily priority tasks, a simple TODO list, and multi-project kanban flow in one local-first workspace.
What I built
Several focused workflows in one surface.
I built the browser-native workspace around shortcut launch, daily focus, project boards, theme customization, and backup/restore.
Technology
Vanilla browser technologies.
Chrome Extension Manifest V3, HTML, CSS, vanilla JavaScript (ES Modules), IndexedDB with localStorage fallback
- Web shortcuts with best-effort title and favicon resolution.
- Up to three active priority tasks.
- Simple TODO list for overflow items.
- Multi-project kanban flow with Todo, Doing, and Done columns.
- Theme customization and JSON backup/restore.
What this demonstrates
Product thinking without a backend.
Designing several related workflows to remain understandable, local-first, and useful offline.
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