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SnappyMail vs Roundcube: catalog facts
SnappyMail	Roundcube
Free Free and open source.	Free Free and open source webmail software.
Web, Self-hosted	Web, Self-hosted
Very small download and fast loading on mobile Maintained successor to RainLoop	Application-like webmail interface for any IMAP server Address book with LDAP connectors
Requires your own web server and mail server Drops support for older browsers	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: AGPL-3.0	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.