Compare software

alot vs mu: catalog facts
alot	mu
Free Free and open source.	Free Free to download, with source code on GitHub.
Linux, Command line	Linux, Command line
Fast search and tagging through notmuch Keyboard and command-prompt driven interface	Fast indexing and detailed search of Maildir mail mu4e gives a full email client inside Emacs
Needs notmuch and separate tools to fetch and send mail Terminal only, with no graphical interface	Works only with Maildir storage; mail must be fetched separately The client side requires Emacs
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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