A fluid task app for personal productivity

Start with a task. Let it grow only when it needs to.

duun helps you capture personal work as tasks, add nested tasks when the work needs more room, keep notes attached, share specific tasks, and schedule time from the task itself.

Get started Google data use

Start simple

Add depth

Plan time

Capture a task: Add the thing in front of you without deciding its whole shape first.
Let it branch: When a task gets bigger, add the tasks that belong to it and keep going.
Keep context close: Put notes, decisions, and rough thinking beside the task they support.
Plan from the task: Schedule the work when timing matters, with optional Google Calendar sync.

Built around the task in front of you

duun keeps the model simple: every item is a task. A task can stand alone, carry notes, be scheduled, be shared, or become the parent of more tasks.

Tasks that can grow

Start with one task, then add another level whenever the work needs more detail.

Notes stay with the task

Keep references, decisions, and working notes attached to the work they explain.

Share focused work

Invite someone into a specific task so they can follow that work without seeing unrelated tasks.

Schedule from the task

Commit time to a task in duun, then optionally sync selected scheduled tasks to Google Calendar.

Scoped AI access

Connect MCP clients with specific permissions to read, create, edit, schedule, complete, or share tasks.

Private by default

Task titles, notes, comments, and schedules are encrypted before storage.

Privacy and connected services

Your tasks stay private. Integrations stay optional.

duun encrypts task content before storage and only uses third-party services when they are needed for account access, billing, support, or an integration you choose to enable.

Google sign-in

If you choose to sign in with Google, duun receives basic account details such as your email address, name, avatar, and Google account identifier so it can create your account, sign you in, and protect account access.

Optional browser extension

Coming soon

Capture and manage tasks from your browser with the duun extension. Add to duun uses browser permissions only after you open the extension or context menu, then sends the page title, URL, and selected text you choose to save.

Optional Google Calendar sync

If you connect Google Calendar, duun uses the granted calendar access to show selectable calendars, sync scheduled tasks you choose, remove synced events when sync is turned off, and check free/busy availability when enabled.

duun does not use Google Calendar data for advertising, and connected calendars can be disconnected from settings.