Linux · Internet & Browsers
Aerion
Lightweight open-source email client for Linux
by 3DF
Official site: flathub.org
About Aerion
Aerion is a modern, lightweight email client inspired by Geary, focused on
resource efficiency and a clean user experience.
Features:
Multiple email accounts with unified inbox
Support for Gmail, Outlook, and generic IMAP/SMTP
Conversation threading
Rich text WYSIWYG composer with TipTap editor
Contact sync (CardDAV, Google, Microsoft) for auto-completion
Dark mode and multiple color themes
Keyboard-friendly navigation with vim-style shortcuts
Detachable composer window
Basic tracking element removal from emails
PGP and S/MIME support
Contacts extension (ALPHA)
Calendar extension (ALPHA)
Custom OAuth support for generic IMAP, SMTP, CardDAV, and CalDAV
How to install Aerion
- Click Download — the developer's official website opens in a new tab.
- Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
- Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub io.github.hkdb.Aerion
- Open Aerion once it finishes installing.
Frequently asked questions
Is Aerion free to download?
Yes. The Download button sends you to flathub.org, the developer's official site, where Aerion is available to download. Flatnic doesn't host or modify any files.
How do I install Aerion from the command line?
With Flatpak, run: flatpak install flathub io.github.hkdb.Aerion. This installs it from the official source and keeps it updated.
Is Aerion safe?
Aerion downloads directly from the developer. As always, scan the installer with your antivirus and choose Custom setup to skip any bundled extras.
