Alternatives/ Chainguard
A fully-free alternative to Chainguard
Chainguard ships excellent Wolfi-based minimal images, but the full catalog sits behind a paid subscription and a small free Starter set. QuenchWorks is also Wolfi-built and 0-CVE, but the entire catalog — images and signed Helm charts pinned by digest — is free, public, and needs no account.
QuenchWorks vs Chainguard, feature by feature
Price / free tier
QuenchWorks
Free
Chainguard
Freemium
A small set of Starter images is free; the full catalog is a paid subscription
Built from source on Wolfi
QuenchWorks
Yes
Chainguard
Yes
Wolfi-based
0-CVE goal with daily rebuilds
QuenchWorks
Yes
Hard Trivy gate; a fixable CVE fails the build
Chainguard
Yes
Near-zero-CVE goal with frequent rebuilds
Signed (cosign keyless)
QuenchWorks
Yes
Chainguard
Yes
SBOM (SPDX or CycloneDX)
QuenchWorks
Yes
SPDX
Chainguard
Yes
SLSA build provenance
QuenchWorks
Yes
Chainguard
Yes
SLSA Build Level 2
Multi-arch (amd64 + arm64)
QuenchWorks
Yes
Chainguard
Yes
Helm charts included
QuenchWorks
Yes
Chainguard
No
Images focused
Charts pin images by digest
QuenchWorks
Yes
Chainguard
n/a
License transparency, clean alternatives flagged
QuenchWorks
Yes
Source-available apps are labeled, with an OSI-clean alternative named
Chainguard
Partial
Open and free to verify
QuenchWorks
Yes
Public images, charts, and build workflows
Chainguard
Partial
Full catalog gated behind a subscription
Conservative on purpose: where a fact about Chainguard could not be confirmed from a primary source, it is marked "Varies" or "Partial" rather than guessed. Verify every claim against Chainguard’s own public sources before relying on it.
Free, signed, and yours to verify.
Browse the catalog or read the source. No account, no registry to add.