webmail

The premium Open Source alternative to Gmail

🎯 Best for:Users of Stalwart Mail Server seeking a modern, fast web interface.
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What is webmail?

Replaces traditional IMAP webmail clients and proprietary suites like Gmail. Utilizes the modern JMAP protocol for high-performance synchronization of mail, contacts, and calendars.

Tech Stack
TypeScriptEmail Clients & Services

Why webmail?

  • Modern JMAP architecture
  • Unified mail/calendar/contacts
  • High-performance UI

Limitations

  • Requires Stalwart backend
  • JMAP adoption is limited
  • Complex initial setup
5/1/2026
Last Update
51
Forks
19
Issues
Other
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to webmail instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on Gmail)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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