Best self-hosted communication - email - webmail clients

[Webmail](https://en.wikipedia.org/wiki/Webmail) clients.

We track 4 self-hosted communication - email - webmail clients projects. The median health score in this category is 72, against 2 projects rated healthy or better and 1 showing little recent activity. The table below is ordered by health score, not popularity — the most starred project in a category is frequently not the best maintained one.

#ProjectHealthActivity StarsBuilt withLast release
1 Cypht
Feed reader for your email accounts.
Healthy · 73 2025-10: 119 commits 2025-11: 74 commits 2025-12: 20 commits 2026-01: 52 commits 2026-02: 68 commits 2026-03: 86 commits 2026-04: 108 commits 2026-05: 153 commits 2026-06: 115 commits 2026-07: 63 commits 2026-08: 37 commits 1.7k PHP 29 Aug 2026
2 Roundcube
Browser-based IMAP client with an application-like user interface.
Healthy · 72 2025-10: 36 commits 2025-11: 15 commits 2025-12: 17 commits 2026-01: 12 commits 2026-02: 8 commits 2026-03: 35 commits 2026-04: 2 commits 2026-05: 55 commits 2026-06: 23 commits 2026-07: 33 commits 2026-08: 29 commits 7.2k PHP, deb 6 Sept 2026
3 SnappyMail
Simple, modern, lightweight & fast web-based email client (fork of RainLoop).
At risk · 15 2025-10: 0 commits 2025-11: 0 commits 2025-12: 0 commits 2026-01: 0 commits 2026-02: 0 commits 2026-03: 1 commits 2026-04: 0 commits 2026-05: 0 commits 2026-06: 0 commits 2026-07: 0 commits 2026-08: 0 commits 1.7k PHP 9 Oct 2024
4 SquirrelMail
Another browser-based IMAP client.
Unrated 2025-10: 0 commits 2025-11: 0 commits 2025-12: 0 commits 2026-01: 0 commits 2026-02: 0 commits 2026-03: 0 commits 2026-04: 0 commits 2026-05: 0 commits 2026-06: 0 commits 2026-07: 0 commits 2026-08: 0 commits — PHP —

Which one should you run?

If you want the safest bet on longevity, Cypht is the best-maintained project in this category right now at 73/100. Roundcube is the closest runner-up (72/100) — see the side-by-side comparison.

A health score measures whether a project is alive and shipping. It does not measure whether it has the feature you need. Use it to rule options out, then compare on features.