List of Top Free Open Source & Self Hosted Application for Communication - Email - Webmail Clients

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Webmail clients.

Cypht – Feed reader for your email accounts. LGPL-2.1 PHP
IMP – HORDE application that provides webmail access to IMAP and POP3 accounts. GPL-2.0 PHP
MailCare – Open source disposable email address service. MIT PHP
Roundcube – Browser-based IMAP client with an application-like user interface. GPL-3.0 PHP
SnappyMail – Simple, modern, lightweight & fast web-based email client. (It is an actively developed fork of RainLoop). AGPL-3.0 PHP
SquirrelMail – Another browser-based IMAP client. GPL-2.0 PHP

Ashwani K

👤 About the Author

Ashwani is passionate about DevOps, DevSecOps, SRE, MLOps, and AiOps, with a strong drive to simplify and scale modern IT operations. Through continuous learning and sharing, Ashwani helps organizations and engineers adopt best practices for automation, security, reliability, and AI-driven operations.

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