Best Open Source Alternatives to Backblaze B2

Compare the best free and open-source alternatives to Backblaze B2 — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 6 alternatives

Backblaze B2

Proprietary SaaS

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Backblaze B2 alternatives compared

Open-source alternatives to Backblaze B2, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
MinIO	61,400	AGPL-3.0	LinuxmacOSWindowsDocker	Yes	Apr 2026	Visit
SeaweedFS	33,855	Apache-2.0	LinuxmacOSWindowsDocker	Yes	Aug 2026	Visit
Ceph	16,878	LGPL-2.1	LinuxDocker	Yes	Jul 2026	Visit
OpenStack Swift	2,786	Apache-2.0	Linux	Yes	Jul 2026	Visit
Zenko	669	Apache-2.0	LinuxDocker	Yes	Jul 2026	Visit
Garage	0	AGPL-3.0	LinuxDocker	Yes	—	Visit

Top open-source Backblaze B2 alternatives

MinIO61,400AGPL-3.0

A high-performance, S3-compatible object storage server designed for cloud-native infrastructure.

LinuxmacOSWindowsDocker

vs Backblaze B2: a free, open-source option you fully control, licensed AGPL-3.0.

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SeaweedFS33,855Apache-2.0

A fast distributed storage system for blobs, objects, and files.

LinuxmacOSWindowsDocker

vs Backblaze B2: a free, open-source option you fully control, licensed Apache-2.0.

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Ceph16,878LGPL-2.1

A distributed object, block, and file storage platform built for high availability.

LinuxDocker

vs Backblaze B2: a free, open-source option you fully control, licensed LGPL-2.1.

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OpenStack Swift2,786Apache-2.0

A highly available, distributed, eventually consistent object store project by OpenStack.

Linux

vs Backblaze B2: a free, open-source option you fully control, licensed Apache-2.0.

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Zenko669Apache-2.0

An open-source multi-cloud data controller offering S3-compatible object access.

LinuxDocker

vs Backblaze B2: a free, open-source option you fully control, licensed Apache-2.0.

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Best Open Source Alternatives to Backblaze B2

Backblaze B2

Backblaze B2 alternatives compared

Top open-source Backblaze B2 alternatives

More alternatives to Backblaze B2

Garage