Roundcube is a browser-based multilingual IMAP client with an application-like user interface.
Best NOCC Alternatives ranked by AI · updated May 2025
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NOCC is a powerful open-source webmail client that can be easily installed on a web server. It provides a clean and intuitive interface for managing emails.
Price: Free
🎯 sourceforge.net/projects/nocc
Top 6 NOCC alternatives
Rainloop is a modern web-based email client with a clean and simple interface.
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
ProtonMail is an end-to-end encrypted email service based in Switzerland.
Free tier available, premium plans starting at $5/month
Zimbra is an enterprise-class email, calendar, and collaboration solution built for the cloud, both public and private.
Starting at $6 per mailbox per year
Tutanota is an open-source end-to-end encrypted email software and freemium hosted secure email service.
Freemium
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