SHSelfHostIndex

Stalwart Mail Server vs Nextcloud Groupware

A side-by-side comparison of two self-hosted apps from related categories — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
ST Stalwart Mail Server Modern all-in-one mail server in a single binary VS NE Nextcloud Groupware Mail, calendar and contacts bundle for Nextcloud
FeatureStalwart Mail ServerNextcloud Groupware
CategoryMail ServersGroupware
LicenseAGPL-3.0AGPL-3.0
LanguageRustJavaScript
Setup difficultyMediumMedium
Min. RAM512 MB1,024 MB
Deploymentdocker, binary, bare-metaldocker, bare-metal, source
GitHub stars★ 14,059★ 1,169
First released20202016
ReplacesMicrosoft Exchange, Google WorkspaceMicrosoft 365, Google Workspace

Why pick each one

Choose Stalwart Mail Server if…

  • Single modern binary
  • Strong security defaults
Stalwart Mail Server details

Choose Nextcloud Groupware if…

  • Tight Nextcloud integration
  • Standards-based sync
Nextcloud Groupware details

Frequently asked questions

Is Stalwart Mail Server or Nextcloud Groupware better?

Neither is universally better. Stalwart Mail Server has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.

Are Stalwart Mail Server and Nextcloud Groupware free and open-source?

Yes. Stalwart Mail Server is licensed under AGPL-3.0 and Nextcloud Groupware under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Stalwart Mail Server and Nextcloud Groupware with Docker?

Stalwart Mail Server: yes. Nextcloud Groupware: yes.

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