Compare software

aercalot
Free

Free and open source under the MIT licence.

 Free

Free and open source.

macOS, Linux, Command line Linux, Command line
  • Composes in an embedded terminal, so you can read other mail while replying
  • Built for the git mailing-list patch workflow, with diff highlighting and repo tabs
  • Fast search and tagging through notmuch
  • Keyboard and command-prompt driven interface
  • Terminal only, with vim-style keybindings to learn
  • HTML mail rendering is a terminal browser, so complex newsletters look poor
  • Needs notmuch and separate tools to fetch and send mail
  • Terminal only, with no graphical interface
Downloadable app Downloadable app
Open source Open source
License: MIT License: GPL-3.0
No account needed No account needed
Works offline Works offline

Checked September 21, 2026

Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.