Compare the best free and open-source alternatives to Resend — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.
Curated by open-source.store · Updated November 2026 · 10 alternatives
| Tool | License | Platforms | Self-hosted | |||
|---|---|---|---|---|---|---|
| 16,178 | AGPL-3.0 | DockerLinux | Yes | Jun 2026 | Visit | |
| 5,573 | AGPL-3.0 | Web | No | Nov 2026 | Visit | |
| 4,778 | AGPL-3.0 | DockerLinux | Yes | Oct 2026 | Visit | |
| 2,304 | MIT | Web | No | Jun 2026 | Visit | |
| 2,274 | — | DockerLinux | Yes | Nov 2026 | Visit | |
| 1,246 | AGPL-3.0 | DockerLinux | Yes | Oct 2024 | Visit | |
| 946 | — | DockerLinux | Yes | Oct 2026 | Visit | |
| 919 | AGPL-3.0 | DockerLinux | Yes | Nov 2026 | Visit | |
| 66 | — | No | Nov 2026 | Visit | ||
| 34 | AGPL-3.0 | Web | No | Oct 2026 | Visit |
Self-hosted mail server and campaign platform replacing Mailchimp with Postfix, Dovecot, and Roundcube on your own Linux server without per-contact fees.
vs Resend: a free, open-source option you fully control, licensed AGPL-3.0.