1 self-hosted ProtonMail alternatives

ProtonMail is a popular proprietary tool in the mail servers space. These open-source apps let you replace ProtonMail with software you host and control yourself.

Best self-hosted ProtonMail alternatives

Medium

source

Mailvelope

Mail Servers

Browser extension for OpenPGP encryption in webmail

Replaces ProtonMail

★ 1.8k Medium setup AGPL-3.0

Switching from ProtonMail

Moving off ProtonMail means trading a managed subscription for a service you run yourself. The payoff is ownership: no per-seat pricing, no vendor lock-in, and full control of your data. Start with the option above that matches your setup-difficulty comfort level — every app links to a detailed specs page and head-to-head comparisons.