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Inbox Zero is an open-source AI email assistant for Gmail and Outlook that labels and sorts mail, drafts replies in your style using your calendar and CRM, follows plain-English rules, blocks cold email and bulk unsubscribes.
Updated Oct 13, 2026
Pricing Paid
Rating No reviews yet
Standout Features
Key Features
What is Inbox Zero?
Inbox Zero is an AI email assistant you can also self-host.
Inbox Zero is a transparent, open-source AI email assistant.
Use Cases
Inbox triage
Faster replies
Founders and executives
Workflow
Connect Gmail or Outlook.
Write rules in plain English.
Review AI drafts.
Unsubscribe in bulk.
Pros & Cons
Pricing
7-day free trial; 14-day refund window.
Who is it for
Everything you need to know about Inbox Zero before you try it.
Gmail, Google Workspace and Microsoft Outlook.
No; it works inside Gmail or Outlook, with an optional client.
Yes, on GitHub.
Yes, within 14 days of upgrading.
Yes, via a 7-day trial.
Real experiences from people who use Inbox Zero. Share yours to help others choose the right tool.
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