ZeroFS

Judgement

What it is

Building block

What it does

A log-structured filesystem that stores everything in an S3 bucket and serves it as POSIX files over NFS and 9P, or as block devices over NBD.

Adopt it when

You want disks or shared filesystems backed by S3-compatible storage for VMs, databases or Kubernetes volumes.

Watch out

It is about sixteen months old and AGPL-licensed, so test its durability before trusting production data to it.

Ready for

Experimental

Runs as

Self-hosted server

Built with

Rust and SlateDB

How established

Young: started 15 months ago, latest release v2.3.6.

What the license allows

Use inside your business is unrestricted. If you change it and let customers use it over the internet, you must publish your changes.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: ZeroFS → Rust → runs on a microchip

How compilers were built, back to punched paper tape

Open-source alternatives to ZeroFS

1. 1
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2. 2
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3. 3
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6. 6
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7. 7
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8. 8
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