Roundcube
Mail ServersBrowser-based IMAP webmail client
Replaces Gmail, Outlook Web
5 self-hosted Outlook Web alternatives
Outlook Web is a popular proprietary tool in the mail servers space. These open-source apps let you replace Outlook Web with software you host and control yourself.
Best self-hosted Outlook Web alternatives
Cypht
Mail ServersLightweight webmail aggregator for many accounts
Replaces Gmail, Outlook Web
SnappyMail
Mail ServersLightweight, fast and modern webmail client
Replaces Gmail, Outlook Web
Afterlogic WebMail Lite
Mail ServersFree webmail front-end for IMAP and SMTP servers
Replaces Gmail, Outlook Web
RainLoop
Mail ServersSimple, modern and fast web-based email client
Replaces Gmail, Outlook Web
No apps match these filters.
Switching from Outlook Web
Moving off Outlook Web 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.