Roundcube

Browser-based IMAP client with an application-like user interface.

GitHub stars
7,215
License
GPL-3.0
Latest release
1.7.4
6 September 2026
Last commit
11 October 2026
Runs on
PHP, Debian packages

Commits per month, last 12 months

261 commits

Replaces

Paid products Roundcube can stand in for.

How to self-host Roundcube

Roundcube runs on PHP and Debian packages. The project's own install guide is the place to start; most people put it on a small server with Docker and a reverse proxy for HTTPS.

  1. Get a server: a home server, a VPS, or a managed app host.
  2. Install it the way the project's docs describe, usually with Docker Compose.
  3. Put it behind HTTPS and set up backups before you add real data.
  4. Update it regularly. Watch the project's releases.

New to self-hosting? Start with the beginner's guide.

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Questions

Is Roundcube free?

Yes. Roundcube is open source under the GPL-3.0 license, so you can use it without paying for a license. You pay only for the server it runs on.

Can I self-host Roundcube?

Yes. Roundcube runs on PHP and Debian packages. Follow the install guide in the project's documentation, or use a host that installs it for you.

What does Roundcube replace?

People use Roundcube instead of Outlook.com.

Is Roundcube still maintained?

The last change to Roundcube's code was on 11 October 2026, with 261 commits in the last 12 months.

Topics

Communication - Email - Webmail Clients

App data from awesome-selfhosted (CC BY-SA 3.0), stars and activity from GitHub.