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QuenchWorks vs Bitnami vs Chainguard

All three build hardened images from source on Wolfi, sign them, and ship SBOMs. The real difference is access. Bitnami moved its free community catalog to a paid Tanzu offering and left a legacy registry behind. Chainguard is a commercial subscription. QuenchWorks is free and independent: public images, signed charts pinned by digest, and build workflows anyone can read. Here are the facts, side by side.

Capability	QuenchWorks	Bitnami	Chainguard
Price	Free	Paid Free community catalog moved to a paid Tanzu offering; a legacy registry remains	Paid Commercial subscription
Built from source on Wolfi	Yes	Yes	Yes
0-CVE goal with daily rebuilds	Yes Hard Trivy gate; a fixable CVE fails the build	Yes	Yes
Signed (cosign keyless)	Yes	Yes	Yes
SBOM (SPDX)	Yes	Yes	Yes
SLSA build provenance	Yes	Partial Varies by offering	Yes
Multi-arch (amd64 + arm64)	Yes	Yes	Yes
Helm charts included	Yes	Yes Behind the paid catalog	No Images focused
Charts pin images by digest	Yes	Yes	n/a
License transparency, clean alternatives flagged	Yes Source-available apps are labeled, with an OSI-clean alternative named	Partial	Partial
Open and free to verify	Yes Public images, charts, and build workflows	Partial Gated behind a subscription	Partial Gated behind a subscription

Price

QuenchWorks: Free
Bitnami: Paid Free community catalog moved to a paid Tanzu offering; a legacy registry remains
Chainguard: Paid Commercial subscription

Built from source on Wolfi

QuenchWorks: Yes
Bitnami: Yes
Chainguard: Yes

0-CVE goal with daily rebuilds

QuenchWorks: Yes Hard Trivy gate; a fixable CVE fails the build
Bitnami: Yes
Chainguard: Yes

Signed (cosign keyless)

QuenchWorks: Yes
Bitnami: Yes
Chainguard: Yes

SBOM (SPDX)

QuenchWorks: Yes
Bitnami: Yes
Chainguard: Yes

SLSA build provenance

QuenchWorks: Yes
Bitnami: Partial Varies by offering
Chainguard: Yes

Multi-arch (amd64 + arm64)

QuenchWorks: Yes
Bitnami: Yes
Chainguard: Yes

Helm charts included

QuenchWorks: Yes
Bitnami: Yes Behind the paid catalog
Chainguard: No Images focused

Charts pin images by digest

QuenchWorks: Yes
Bitnami: Yes
Chainguard: n/a

License transparency, clean alternatives flagged

QuenchWorks: Yes Source-available apps are labeled, with an OSI-clean alternative named
Bitnami: Partial
Chainguard: Partial

Open and free to verify

QuenchWorks: Yes Public images, charts, and build workflows
Bitnami: Partial Gated behind a subscription
Chainguard: Partial Gated behind a subscription

Bitnami and Chainguard are solid engineering. This page is not a knock on either one. It exists because the free, no-account path that many teams relied on is now a paid path, and QuenchWorks keeps that path open. Verify any claim here against the public images and workflows.

Free, hardened, and yours to verify.

Browse the catalog or read the source. No account, no registry to add.

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