CunoFS

POSIX filesystem for cloud object storage.

Profile updated 2026-10-16

Console’s review

Oct 12, 2023 · Reviewed by David Mytton

What we like

Exposes cloud object storage (S3 & S3 compatible, GCS, Azure Storage) as if it were a POSIX compatible filesystem with standard commands like copy, list, remove, etc. Appears as a new mounted filesystem plus a CLI for direct interaction (which offers better performance than a FUSE mount). Supports metadata like permissions, links, users, etc.

Tradeoffs

No Arm binaries. Be aware that whilst CunoFS works around the object storage write-once limitation, it may not be efficient.

Is CunoFS a fit?

Based on Console’s review published on 2023-10-12. Summary updated 2026-10-16.

Who it’s for

Developers using cloud object storage should consider CunoFS

Why consider it

CunoFS allows exposure of cloud object storage as a POSIX compatible filesystem

Keep in mind

CunoFS may not be efficient due to object storage write-once limitation

Tech stack

Runs on: Linux
Windows
macOS
Integrates with: Docker
Kubernetes

Checked 2026-10-11

Source and notes

CunoFS successor Object Mount supports macOS, Windows, Linux, Docker and Kubernetes containers.

View research source ↗

Coverage may be incomplete. “Written in” describes implementation, not supported project languages.