Cypht vs Nextcloud Mail

A side-by-side comparison of two self-hosted mail servers options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
FeatureCyphtNextcloud Mail
Deploy effortUnder-an-hour setupRead-the-docs project
Health score85 · Excellent64 · Good
CategoryMail ServersMail Servers
LicenseLGPL-2.1AGPL-3.0
LanguagePHPJavaScript
Setup difficultyMediumEasy
Min. RAM128 MB512 MB
Deploymentdocker, bare-metal, sourcesource
GitHub stars★ 1,735★ 1,029
First released20152014
ReplacesGmail, Outlook WebGmail

What are Cypht and Nextcloud Mail?

Cypht

Cypht is a webmail client that combines email from multiple IMAP, POP3, and SMTP accounts plus RSS feeds into a single unified interface. It is lightweight and privacy-conscious.

  • Aggregates multiple email accounts
  • Combined inbox view
  • RSS feed integration
  • Modular plugin system

Nextcloud Mail

Nextcloud Mail is the official mail app for Nextcloud that connects to existing IMAP and SMTP accounts inside the Nextcloud interface. It integrates with contacts, calendar, and files.

  • IMAP and SMTP support
  • Integrated with Nextcloud
  • Contacts and calendar links
  • Threaded conversations

Cypht vs Nextcloud Mail: key differences

Cypht is written in PHP, while Nextcloud Mail is built with JavaScript. Licensing differs — LGPL-2.1 for Cypht versus AGPL-3.0 for Nextcloud Mail. Cypht is the lighter option, starting around 128 MB of RAM against 512 MB for Nextcloud Mail. Cypht lists first-class Docker deployment; Nextcloud Mail does not.

Why pick each one

Choose Cypht if…

  • Released under the LGPL-2.1 license
  • First-class Docker support for quick deployment
  • Active community (1.7k GitHub stars)
  • Written in PHP

Watch out for

  • Less polished than Roundcube
  • Setup needs configuration
Cypht details

Choose Nextcloud Mail if…

  • Released under the AGPL-3.0 license
  • Easy to set up — beginner-friendly
  • Active community (1k GitHub stars)
  • Written in JavaScript
Nextcloud Mail details

Frequently asked questions

Is Cypht or Nextcloud Mail better?

Neither is universally better. Cypht has the larger community, while Nextcloud Mail is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.

Are Cypht and Nextcloud Mail free and open-source?

Yes. Cypht is licensed under LGPL-2.1 and Nextcloud Mail under AGPL-3.0. Both can be self-hosted at no software cost.

Can I run Cypht and Nextcloud Mail with Docker?

Cypht: yes. Nextcloud Mail: check the project docs for container support.

Which is lighter on resources, Cypht or Nextcloud Mail?

Cypht has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for Nextcloud Mail. Real-world usage depends on library size, user count, and enabled features.

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