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Inbox Zero is an open-source AI email assistant that works with Gmail, Google Workspace and Outlook accounts. It automates labeling, archiving, replies and forwarding from rules you write in plain language.
You connect a Gmail, Google Workspace or Outlook account and describe rules in plain English, such as what to label or archive. The assistant applies those rules to incoming mail and drafts replies you can review. Because the code is open source, teams can read how mail is processed or self-host so messages never reach third-party servers.
Individuals and teams with heavy inboxes, founders and support-style roles that need triage and reply tracking, and technical teams that want to self-host an email assistant.
The self-hosted version is free. Third-party listings cite hosted plans of Starter around $20 per month ($18 annual), Plus $35 ($28 annual) and Professional $50 ($42 annual); confirm on the vendor pricing page.
Related tools include Jace AI, Instantly, Lemlist, Smartwriter and Warmer.ai, which cover email assistants and cold email rather than inbox triage.
Pricing Model
FREEMIUM
Starting Price
Contact vendor
Free Options
Free version
| Feature | Self-hosted | Custom |
|---|---|---|
| Open-source code | , | |
| Run on your own servers | , | |
| Hosted plans; see vendor pricing page | , |
Other
Authentication
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API Types
SDK Availability
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Developer Features
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Compliance Standards
SOC 2 Type II
EnterpriseISO 27001
EnterpriseGDPR Compliant
GlobalHIPAA
HealthcarePCI DSS
FinanceCCPA
PrivacyFedRAMP
GovernmentCSA STAR
CloudDeployment & Data
Data Residency Options
Verify with vendor for your specific region requirements.
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