The task manager for Thunderbird

Todoist is the only to-do list app that integrates fully with Thunderbird, so you can organize your inbox, and turn emails into tasks with one click.

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Manage email better

Say goodbye to lost and forgotten emails. Todoist lets you set an email as a task with one click, so you'll always remember to follow up.

Organize your inbox

Advanced task management features let you organize tasks into projects, set priorities and deadlines, and use color-coding to manage your inbox.

Collaborate in Thunderbird

Share projects, assign tasks to others, set deadlines, and collaborate on shared tasks in real time straight from your Thunderbird interface.

Access tasks anywhere

With free apps and extensions for 15 platforms, your tasks are always where you need them – on your desktop, phone, tablet, browser, and more!

Get more features. Get more done.

Todoist offers more useful features than any other to-do list. So you can do more to customize the experience, organize your tasks and projects, and optimize your productivity.

Sub tasks

Achieve more by breaking big tasks into smaller sub-tasks (multi-level).

Sub projects

Manage complexity by breaking big projects into smaller sub-projects (multi-level).

Share and collaborate

Share projects, delegate tasks and discuss details - on any device and platform!


Get notified when important changes happen via emails or push notifications.

Human due dates

Quickly write due dates using normal language, such as “monday at 2pm”.

Powerful recurring dates

Quickly write due dates using normal language, such as “every day at 2pm”.

Real-time data synchronization

Never think about syncing, we do it for you in real time across any device and platform.

Multiple priorities

Focus on the important stuff using Todoist’s colored priorities.

Visualize your productivity

With Todoist Karma you can track your productivity and visualize your productivity trends over time.

Reminders premium

Get reminded via email, push notification or SMS. Also receive location-based alerts when on‑the‑go.

Notes premium

Add as many details as you want using task notes. Or attach PDFs, spreadsheets or photos.

Labels and filters premium

Put tasks into contexts via labels, a great way to become even more organized. Create custom filters that fit your workflow.

Managing millions of tasks. Loved by millions of people worldwide. Trusted by leaders in Fortune 100 companies.

Todoist - Fortune 100

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