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Zenko CloudServer

Implementation of the Amazon S3 protocol on the front-end and backend storage capabilities to multiple clouds, including Azure and Google.

Description from awesome-selfhosted (CC BY-SA 3.0)

Still maintained? Yes: 315 commits in the last 90 days, latest release 9.5.2 (Oct 2026).

Also an alternative to AWS S3.

Docker #4 of 7 in File Transfer - Object Storage & File Servers

At a glance

Zenko CloudServer quick facts

Health score
93/100 GOOD
Stars
1,955
Last commit
yesterday (Oct 2026)
Latest release
9.5.2, Oct 2026
Licence
Apache-2.0
View scality/cloudserver on GitHub ↗ Website ↗

Top alternatives to Zenko CloudServer

Full rankings: AWS S3 alternatives

In its own words

The project's README opens: "CloudServer (formerly S3 Server) is an open-source Amazon S3-compatible object storage server that is part of Zenko, Scality’s Open Source Multi-Cloud Data Controller."

Why it ranks here

Health score explained

Zenko CloudServer scores 93/100, #4 of 7 in File Transfer - Object Storage & File Servers: 315 commits in the last 90 days earn 35.0 of 35 points, the latest release (9.5.2, 3 days ago) earns 25.0 of 25, 1,955 stars add 13.2 of 20, an active, unarchived repository keeps 10 and Docker support adds the final 10. That places it in the good band (70 and above). The biggest shortfall is star count, worth 6.8 more points.

Recomputed nightly from the GitHub API. How the score is calculated.

Health over time

Health 93 on 11 Sep, 93 nowSteady at 93 since 11 Sep
  • Commit activity 35.0 / 35

    315 commits in 90 days (30+ scores full marks)

  • Release recency 25.0 / 25

    9.5.2 released 3 days ago

  • Stars biggest shortfall 13.2 / 20

    2k stars on GitHub (logarithmic)

  • Not archived 10.0 / 10

    Repository is active

  • Docker support 10.0 / 10

    Docker image or Compose file available

Commit activity

873 commits over the last 12 months
315
Last 90 days
873
Last 12 months
yesterday
Last push

Ranked #4 of 7 tools in File Transfer - Object Storage & File Servers by health , between ZOT OCI Registry (#3) and Flare (#5) .

Details

LicenceApache-2.0
PlatformsDocker, Nodejs
Latest release9.5.2 · 3 days ago
Stars1,955
Open issues58
DockerYes
Repositoryscality/cloudserver ↗
Visit website ↗ Source code ↗

Zenko CloudServer vs its top 5 alternatives

Active tools that share a comparison page or a category with Zenko CloudServer (File Transfer - Object Storage & File Servers), scored on the same five terms.

Tool Health Stars Licence Last commit
Harbor 98 30k Apache-2.0 today
sftpgo Community Edition 96 13k AGPL-3.0 8 days ago
ZOT OCI Registry 94 2.9k Apache-2.0 today
Zenko CloudServer (this tool) 93 2k Apache-2.0 yesterday
GarageHQ 89 179 AGPL-3.0 7 days ago
SeaweedFS 88 36k Apache-2.0 today

Zenko CloudServer: common questions

What does Zenko CloudServer replace?

Repoly lists Zenko CloudServer as an open-source alternative to AWS S3. Each comparison page ranks every alternative by the same health score, so you can see where Zenko CloudServer stands against the others.

Is Zenko CloudServer still maintained?

Zenko CloudServer had 315 commits in the last 90 days and its last push was yesterday; the latest tagged release, 9.5.2, is from 3 days ago. Repoly recomputes this nightly.