N1

Mac

Customizable Open-Source Email Client for Mac

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Overview

N1 is an open-source, cross-platform email client built on Electron, tailored for Mac users seeking flexibility and personalization. It supports multiple providers (Gmail, Outlook, IMAP/SMTP) with a unified inbox for seamless management. Users can customize the interface via themes and extend functionality with plugins. Features include offline access, quick search, keyboard shortcuts, and message snoozing. Though acquired by ProtonMail and eventually discontinued, it remains a favorite for those valuing open-source tools and tailored email experiences.

Key Features

  • Unified inbox for multiple accounts
  • Customizable themes & plugins
  • Offline email access
  • Quick search with filters
  • Keyboard shortcuts for efficiency

Top Alternatives

Mailspring Compare
Thunderbird Compare
ProtonMail Desktop Search Google

Tool Info

Pricing Free
Category Email Clients
Platform Mac

Pros

  • Open-source and free
  • Highly customizable interface
  • Supports major email providers

Cons

  • Discontinued (no active updates)
  • Electron-based (potential performance overhead)

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