Inbox Zero is an AI personal assistant for email, positioned as an open-source application with the goal of helping users quickly reach inbox zero. It is officially described as "the world's best AI email personal assistant" and is said to be an open-source alternative to Fyxer, but more customizable and more secure.
Purpose and positioning: Help users reduce the time they spend in their inbox and focus their energy on more important things. It is a feature layer built on top of Gmail, providing inbox organization, pre-written replies, calendar management, attachment organization, and other capabilities.
Main capabilities:
- AI personal assistant: Organizes the inbox and pre-writes replies in the user's tone and style.
- Email AI rules: Use plain English to explain how the AI should handle the inbox.
- Reply Zero: Tracks emails that need replies and emails waiting for the other party's response.
- Bulk unsubscribe: Unsubscribe and archive emails you never read with one click.
- Bulk archive: Bulk archive old emails to clean up the inbox.
- Cold email blocking: Automatically blocks cold email.
- Email analytics: Tracks activity and trends over time.
- Meeting briefs: Get a personalized brief before each meeting, extracting context from email and calendar.
- Smart archiving: Automatically saves email attachments to Google Drive or OneDrive.
- Slack and Telegram integration: Chat with the AI assistant in Slack or Telegram and manage your inbox without leaving the apps you commonly use.
How to use it: A hosted version is available at getinboxzero.com. The fastest way to self-host is to use the CLI. The prerequisites are Docker and Node.js v24+, and after startup visit http://localhost:3000。完整自托管说明、生产部署、OAuth For setup and configuration options, see the official self-hosting documentation. Local development: The prerequisites are macOS or Linux (use WSL on Windows), Node.js v24, and the pnpm version specified in package.json; install Docker Desktop (including Compose) or native PostgreSQL and Redis; on macOS you can install them with brew install postgresql@16 redis. Visit http://localhost:3000/mail，可用 Sign in with Google (developer@example.com) or Microsoft (developer@outlook.test). The Google mailbox contains demo emails; the demo user has already completed the onboarding flow, and local development skips the paid check. This command starts an isolated database, Redis and its HTTP endpoint, two email provider simulators, billing and email delivery simulators, an LLM simulator, and Next.js, and runs migrations and waits for services to be ready, without requiring OAuth credentials or AI API keys; AI responses are preset content, and this mode is only for walking through the application flow and does not reflect model quality.
Limitations and notes: Explicit features, charges, prices, platforms, and usage steps are subject to official materials and documentation; details not provided in the materials are not yet available.
