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NeoMutt vs Cone: catalog facts
NeoMutt	Cone
Free Free and open source under the GPL.	Free Free open-source software.
macOS, Linux, Command line	Linux, Command line
Collects and maintains the Mutt patches that were previously scattered Notmuch tags and IMAP keywords as custom mailbox tags	Multiple IMAP and POP3 accounts plus local maildirs Built-in editor with spell checking
Terminal only, with a configuration file that must be written before it is useful Mutt's keybindings and terminology take real time to learn	Text-only interface Images and PDFs need external viewer programs
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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