Inbox Zero

Inbox Zero is an open-source AI email assistant that organizes inboxes, drafts replies, and blocks cold emails.

Inbox Zero is an open-source AI executive assistant designed to help professionals manage their email and calendar. It automatically labels and organizes incoming messages, blocks cold emails, and provides pre-drafted replies based on your email history and schedule. Users can bulk unsubscribe from unwanted newsletters, view email analytics, and connect tools like Slack and CRMs. The platform supports Gmail, Google Workspace, and Microsoft Outlook accounts, and operates on the web, mobile apps, and Slack or Telegram. It prioritizes privacy with no AI training on user data and offers a self-hosted option for total control.

Inbox Zero at a glance

Best for: Founder, Sales, Director
Runs on: Web, iOS, Android, Slack, self-hosted
Pricing: Starter plan; Plus plan; Professional plan; Enterprise plan; 7-day free trial available
Released: July 2023
Category: AI productivity tool
Website: getinboxzero.com

Key features

Sorts and labels every email automatically
Drafts replies in your personal voice
Blocks cold emails and spam
Bulk unsubscribes and archives emails
Provides email analytics and insights
Includes an AI meeting notetaker
Connects to calendars and CRMs

Use it for

Reaching inbox zero quickly by bulk unsubscribing from junk mail
Drafting email replies automatically in your tone
Managing emails and reading digests through Slack or mobile
Organizing cluttered inboxes with custom smart categories

Alternatives to Inbox Zero

Emilio — Sorts priority emails and drafts replies in your tone.
Shortwave — It uses advanced AI agents to organize, write, search, and automate your inbox.
Busymail — Connects to Gmail, Yahoo, or IMAP servers and surfaces critical messages automatically.
EmailTriager — It automatically drafts email replies in your true voice directly inside Gmail.
Instantly — Automates cold email campaigns at scale with high deliverability and AI support.
Superhuman — Email, docs and writing help from the makers of Grammarly
Slashy — It drafts replies in your voice and automates routine inbox tasks.
Claire Mail — Combines mail, calendar, reminders and AI triage in one fast app for Mac and iPhone.
Smartlead — It offers unlimited email accounts and automated warmup to scale outreach securely.
Calendar Assistant — Manage Google Calendar and Outlook accounts by typing, speaking, or sending photos.
Hedwig — Send email campaigns from your own mailboxes without paying per-seat fees.
monday.com — Combine human teams and custom AI agents on one secure work platform.

All Inbox Zero alternatives