Roundcube vs Himalaya

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?
FeatureRoundcubeHimalaya
CategoryMail ServersMail Servers
LicenseGPL-3.0MIT
LanguagePHPRust
Setup difficultyEasyMedium
Min. RAM256 MB64 MB
Deploymentdocker, bare-metal, sourcebinary, source
GitHub stars★ 7,118★ 6,962
First released20082021
ReplacesGmail, Outlook WebMutt, Outlook

Why pick each one

Choose Roundcube if…

  • Mature and stable
  • Widely supported
Roundcube details

Choose Himalaya if…

  • Released under the MIT license
  • Mature project with 7k GitHub stars
  • Written in Rust
  • Tiny footprint — runs in 64 MB RAM
Himalaya details

Frequently asked questions

Is Roundcube or Himalaya better?

Roundcube is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider Himalaya if its specific feature set fits your needs better.

Are Roundcube and Himalaya free and open-source?

Yes. Roundcube is licensed under GPL-3.0 and Himalaya under MIT. Both can be self-hosted at no software cost.

Can I run Roundcube and Himalaya with Docker?

Roundcube: yes. Himalaya: check the project docs for container support.

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