4 Best Open Source Gmail Alternatives
A curated collection of the 4 best open source and self-hosted alternatives to Gmail in 2026.
Looking for a free, privacy-friendly, or self-hosted replacement for Gmail in 2026? The top open-source alternative is Macro Mail — An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows..
Other highly rated open-source Gmail alternatives include Tuta, UnInbox and Twake Mail.
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
An AI-powered email client that combines inbox management, chat, tasks, and AI agents in one shared workspace, built for keyboard-driven workflows.
Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.
Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.
Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.
Open source professional email solution with PGP encryption, JMAP protocol, AI-powered responses, and advanced antispam protection. Control your data privately.
About Gmail
A free email service developed by Google, offering secure webmail, POP3, IMAP access, spam filtration, and organizational tools since 2004.