Open Source Email Clients
A curated collection of the best open source desktop, mobile, and web applications for reading and managing email, with multi-account support, search, and encryption.
Keyboard-first email client with AI, chat, and tasks
Stars
3,991Last commit
10 hours agoLicense
AGPL-3.0
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
Open Source Alternative to:
AI email assistant that automates, organizes, and declutters
Stars
12,067Last commit
10 hours agoLicense
AGPL-3.0
Automates Gmail and Outlook with AI-drafted replies, bulk unsubscribe, cold email blocking, attachment filing, and inbox analytics for individuals and teams.
Open Source Alternative to:
Transform team email into efficient collaborative workflows
Stars
1,755Last commit
6 months agoLicense
AGPL-3.0
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.
Open Source Alternative to:
Secure open source email with advanced encryption & AI
Stars
647Last commit
3 days agoLicense
AGPL-3.0
Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.
Open Source Alternative to:
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