Skip to content

hkdb/aerion

Logo

Aerion - An Open Source Lightweight E-Mail Client

Maintained by: @hkdb

screenshot

❓ Why?


Windows has Outlook

Mac has Mail

Linux has.....

  • Thunderbird - Clunky and too much legacy structure
  • Geary - Crippled by Gnome Online Accounts and search is unreliable
  • Mailspring - Electron...
  • Evolution - ... 1999

All are not necessarily always light on resource consumption...

👁️‍🗨️ Summary


A standalone lightweight e-mail client inspired by Geary focused on achieving the following goals:

  • Resource Efficiency - Minimal CPU, RAM, and battery consumption
  • Modern UX - Clean, intuitive interface with dark mode support
  • Keyboard & Mouse Friendly - Full keyboard navigation with vim-style shortcuts
  • Independence - No dependency on Gnome Online Accounts or other system services
  • Search That Works - Basic search that actually finds your emails

🖥 OS Support


Although Linux is a first-class citizen here, it should also work on:

  • MacOS
  • Windows

Some of the system level features (clickable notifications & auto-sync on wake) are not yet implemented on MacOS and Windows.

🪶 Features


  • Multiple Accounts
  • Providers: (🧪 = NOT YET TESTED)
    • Generic IMAP/SMTP
    • GMail
    • Microsoft 365 / Outlook
    • Yahoo 🧪
    • Proton Mail (via Proton Bridge)
    • iCloud Mail 🧪
    • Fastmail 🧪
    • Zoho Mail 🧪
    • AOL Mail 🧪
    • GMX Mail 🧪
    • Mail.com 🧪
  • Unified Inbox (Color Code Accounts)
  • Conversation Threads
  • Basic Removal of Tracking Elements in Mail Content
  • WYSIWYG Detachable Composer (TipTap Editor)
  • WYSIWYG Signatures (TipTap Editor)
  • CardDav/Google/Microsoft Contact Sync for auto-complete
  • Basic Search
  • Notification that brings focus to the e-mail when clicked (Linux Only)
  • Auto-Sync when system wakes from suspend (Linux Only)
  • Keyboard Shortcuts

🚀 Installation


Download from the release page:

  • Linux: AppImage (Or the binary + .desktop file if you prefer)
  • MacOS: .app
  • Windows: .exe

For more information, check the Installation Section of the official documentation.

📖 Documentation


⚗️ Tech Stack


This application was built with Wails + Svelte and mostly implemented by Claude Opus 4.5.

🧑🏻‍💻 Roadmap


Potential features in the future:

  • PGP Support
  • In-App Keyboard Shortcut Cheat Sheet
  • Integrated Calendar?
  • Theme (Color) Customization
  • AI Assisted Composition
  • Advance Search

💰 Sponsorship


3DF is sponsoring by way of dedicating the team's time to work on this. There's otherwise currently no sponsorship. If you like this project, please feel free to give us a star or buy us a coffee:

"Buy Me A Coffee"

📑 Terms of Use & Privacy Policy