Compare software

Cypht vs Roundcube: catalog facts
Cypht	Roundcube
Free Free and open source under the LGPL v2.1.	Free Free and open source webmail software.
Web, Self-hosted	Web, Self-hosted
Unified views across many email accounts Supports IMAP, JMAP and Exchange EWS	Application-like webmail interface for any IMAP server Address book with LDAP connectors
Needs a PHP server or Docker to run Less polished than commercial webmail	Requires a PHP web server and an existing mail server Only a webmail front end, not a mail server itself
Self-hosted	Self-hosted
Open source	Open source
License: LGPL-2.1	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.