Chainguard alternatives: Features, tradeoffs, SLAs & pricing

Chainguard is the trusted source for secure-by-default open source software components. Our platform delivers hardened container images, malware- and greyware-resistant language libraries, VMs, and CI/CD actions — all built to help our customers accelerate software delivery without compromising on security. In this post, we'll compare Chainguard Containers to other providers to help you make the right decision for your team’s risk management profile.

How Chainguard differs from other supply chain security platforms

The Chainguard strategy involves enforcing end-to-end control over all third-party code and its build environment, securing the software development lifecycle from source code to production artifact. Chainguard builds all its container images from verified source code on its own purpose-built Linux distribution, Chainguard OS, in a SLSA Level 3 hardened build system called the Chainguard Factory. The result is minimal, zero-CVE container images that are continuously rebuilt, backed by a contractual CVE remediation SLA (7 days critical, 14 days high/med/low, and a 1-day KEV SLA), and shipped with a signed software bill of materials (SBOM) and provenance.

Containers are one piece of a larger picture. Chainguard provides hardened open source artifacts to secure all stages of the SDLC, from the dependencies pulled in at build time to the workloads running in production. Other Chainguard offerings include: Chainguard Containers, Chainguard Libraries, Chainguard Actions, Chainguard Agent Skills, and Chainguard VMs. Containers specifically close the gap at the build and deploy stages, where most third-party code runs unexamined and exposed to bad actors.

A true alternative to Chainguard needs to deliver end-to-end supply chain control that covers every aspect of the pipeline where your dependencies can be compromised, not just basic cybersecurity measures like vulnerability scanning or software debloating.

Supply chain security tools that are not complete solutions

• Vulnerability scanners and reactive patchers: Both detect known vulnerabilities, but neither protects your software supply chain against new or unknown vulnerabilities.

• Policy engines: These define rules for artifact consumption, validation, and monitoring.

• CNAPPs (Cloud Native App Protection Platforms): These offer a broad spectrum of services for securing your app, but they often do not meet compliance standards, and do not offer comprehensive protection for applications or workloads running on other infrastructure.

These tools are no substitute for Chainguard’s end-to-end defense of your software pipeline, but they can be a great complement.

Alternative suppliers for hardened container images

Next, we'll go over some vendors that provide hardened container images. These vendors' container images are the closest thing to a Chainguard alternative, but each makes different architectural and business tradeoffs that may or may not suit your use case. And notably, no other vendor but Chainguard provides hardened open source artifacts that protect every layer of your software stack: container images, malware- and greyware-resistant language libraries, VMs, and CI/CD actions

If you're still figuring out your exact requirements, check out Chainguard Academy for helpful articles, like this guide to whether you need FIPS compliance.

Docker Hardened Images (DHI)

Docker’s catalog of minimal container images was launched in May 2025 and made fully free and open source (Apache 2.0) in December 2025. A familiar entry point for Docker users, but limited supply chain control, no owned FIPS validation, and incomplete catalog coverage leave meaningful gaps compared to Chainguard.

Strengths:

• Familiar ecosystem and brand

• Full catalog available free and open source as DHI Community under Apache 2.0

• Drop-in migration with minimal workflow changes

• Signed SBOMs and SLSA Level 3 provenance

• Extended Lifecycle Support (ELS) adds up to 5 years of patching post-upstream EOL

Limitations:

• Supply chain control is inconsistent — Alpine packages are increasingly built from source via Docker's hardened package pipeline, but Debian packages still come from upstream, and individual image builds have been observed downloading pre-built binaries rather than compiling from source

• Free/Community tier carries no CVE remediation SLA, no FIPS/STIG variants, and no customization — those require paid tiers (Select or Enterprise)

• No equivalent to Chainguard Libraries, VMs, Skills, or Actions

Bitnami Secure Images

Pre-packaged, hardened application images maintained by Broadcom (formerly VMware/Bitnami). Catalog of 280+ open source projects. Appealing to teams who are already using Bitnami, but supply chain security is not Broadcom’s core business, and for non-Photon images, Bitnami does not own or control the underlying OS or cryptographic modules it ships. 

Strengths:

• 110+ Helm charts plus newer distroless chart variants

• Broad application coverage

• Includes VEX docs, CVE scan results, SBOMs, and SLSA Level 3 supply chain attestation signatures

• 500M+ total Docker pulls

Limitations:

• Claims FIPS, STIG, and FedRAMP support, though compliance artifacts are only documented for Photon OS-based images

• Smaller catalog (~280 OSS projects)

• Broadcom's track record of price increases and anti-customer behavior creates vendor risk

• Helm chart migration uncertainty as Broadcom moves free tier to paid

• For non-Photon images, it does not own or control the underlying OS or cryptographic modules

• No equivalent to Chainguard Libraries, Skills, or Actions

RapidFort

A commercial Software Attack Surface Management (SASM) platform that provides curated container images and runtime-based image debloating tools. Appeals to teams that want CVE reduction without changing their base OS or distro, but RapidFort does not own the underlying supply chain, and debloating corrupts image metadata and weakens SBOM integrity. 

Strengths:

• No OS change required — works with Ubuntu, RHEL, Debian, Alpine

• Drop-in CVE reduction without Dockerfile rewrites

• Combined platform (scanning, runtime profiling, and hardening) in a single tool rather than separate point solutions

Limitations:

• Does not own or control the underlying OS or cryptographic modules

• Debloating corrupts image metadata, weakens SBOM integrity, and creates "dark matter" files invisible to scanners

• No owned CMVP certificate — FIPS posture inherited from upstream distros they don't control

• Debloating requires rewiring CI/CD pipeline and 100% automated test coverage for every execution path — significant ongoing engineering cost

• Non-contractual remediation targets

• 25,000+ image count includes versions, not distinct OSS projects

• No equivalent to Chainguard VMs, Skills, or Actions

Google Distroless

Google-maintained open source minimal container images that strip OS packages down to application runtime only. Currently based on Debian 12 and 13. Well-known community open source project, but it does not offer contractual SLA, OS-level protection, or FIPS validation.

Strengths:

• Free and open source (Apache 2.0)

• Very small image sizes (static image is ~2 MiB)

• Well-known in the community, with 22K+ GitHub stars

• Used by major projects like Kubernetes, Knative, and Tekton

• Images are signed via keyless/Sigstore cosign

Limitations:

• Community open-source project with best-effort maintenance by Google

• No contractual SLA

• Can still contain OS-level vulnerabilities inherited from Debian. Patches track upstream Debian releases via automated PRs, but remediation speed depends on Debian's patch cadence

• Very limited image catalog (~4 base image types: static, base, base-nossl, cc, plus language runtimes for Python, Java, Node.js)

• No FIPS-validated variants

• Images are cosigned with SBOM attestations and SLSA Level 2 provenance compared to Chainguard's SLSA Level 3 provenance and signed SBOMs on every artifact

• No equivalent to Chainguard Libraries, VMs, Skills, or Actions

Iron Bank (Platform One)

The U.S. Department of Defense's (DoD) centralized repository of hardened container images, operated by Platform One under AFLCMC (Air Force Life Cycle Management Center). Hosted on Repo One (repo1.dso.mil), images are hardened to DoD STIG standards and approved for use on ATO'd Kubernetes clusters within the DoD DevSecOps Reference Design. The gold standard for DoD/defense container compliance, although it lacks equivalents to many Chainguard products.

Strengths:

• The gold standard for DoD/defense container compliance

• Images are hardened against DISA STIG and CIS benchmarks

• Already integrated into DoD's DevSecOps pipeline

• CVE scans must pass DISA thresholds

• Free to access for anyone with Platform One registration, though it primarily serves DoD organizations and vendors

Limitations:

• Purpose-built for DoD use: the repo is publicly browsable and commercial vendors contribute images, but Iron Bank carries no commercial support and is designed specifically for the defense ecosystem

• No contractual SLA

• Pulling images requires Platform One SSO credentials (CAC or 2FA registration)

• Images are hardened versions of upstream distro images, not built from source on a custom OS. 

• Remediation speed depends on the Iron Bank hardening pipeline and upstream availability

• Onboarding and approval processes can be lengthy. Contributing or requesting new images requires navigating DoD pipeline processes

• No equivalent to Chainguard Libraries, VMs, Skills, or Actions

Minimus

A newer entrant in the hardened container image space. Focuses on minimal attack surfaces and compliance readiness. Can be a cost-effective alternative to Chainguard Containers if their smaller image catalog meets your needs, but they lack alternatives to many other Chainguard products that address your entire pipeline.

Strengths:

• Images are built from source with continuous patching

• Claims 97%+ fewer CVEs than public images

• Critical/high CVE remediation within 48 hours

• FIPS 140-3, STIG, CIS, and NIST-ready images

• Custom image builder available

• Positions as a Bitnami alternative with Helm chart support

Limitations:

• Smaller demo-stage company with fewer public enterprise case studies than Chainguard

• Catalog at ~1,200 images — smaller than Chainguard's, though growing quickly

• Pricing is not publicly listed (demo-gated), making direct cost comparison difficult

• No equivalent to Chainguard Libraries, Skills, or Actions

DIY / Building Your Own

Teams can build their own hardened container images using minimal base images and community tooling. However, it’s important to understand the cost and burden of internal maintenance and compliance.

Strengths:

• No third-party licensing cost

• Full control over image composition

• No vendor dependency

Limitations:

• High internal maintenance burdens and hidden costs. Requires dedicated engineers to track upstream changes, rebuild, patch, test, and distribute images. One enterprise customer estimated it would have taken 15-20 full-time engineers to build a comparable golden image program in-house

• Remediation speed depends on internal team bandwidth and priorities

• Security quality depends entirely on team expertise and capacity

• No built-in compliance artifacts (FIPS, SBOMs, provenance) unless the team builds that tooling too

Why organizations choose Chainguard

Now that we’ve summarized the alternatives and their tradeoffs, let’s review the security coverage you get when you choose Chainguard.

Built from source all the way to the OS level

Chainguard's approach to OS-level security starts at the OS itself. We bootstrapped our own Linux distribution, Chainguard OS, specifically to maintain end-to-end control of the supply chain — not just the application layer sitting on top of someone else's distro.

That ownership shows up in how packages get built. Every package, from third-party components to open source dependencies to the OS layer itself, is rebuilt from verified upstream source inside our own pipeline. Nothing gets inherited unpatched, and no vulnerabilities slip through just because they live below the application layer.

Vendors building on legacy distros like Debian or Alpine face a structural limit. Their SLA is only as fast as the upstream maintainers who own the layer they didn't build. Chainguard doesn't have that dependency. Because we control the full stack, our remediation timeline isn't a promise contingent on someone else's release schedule. It's something we can actually enforce.

The mechanism behind this is the Chainguard Factory, our automated build system. It tracks upstream changes continuously, triggers clean rebuilds the moment a fix is available, and validates every build in an SLSA Level 3 environment before it ships.

The payoff is images that ship at zero or near-zero known CVEs, and stay that way because they're rebuilt on a cadence tied to upstream activity, not a quarterly patch cycle.

Other features Chainagurd provides that alternatives don’t

• Our contractual CVE SLA (7 days critical, 14 days all other levels) is enforceable in a way legacy-distro-based vendors' SLAs aren't — we don't have to wait on Debian, Alpine, RHEL, or Ubuntu to ship a fix first

• 2,800+ OSS projects, 30,000+ packages, 1100+ FIPS-validated variants — the deepest catalog in the category

• Custom Assembly and Private APK Repository access let you compose, pin, and extend images from a catalog of 30,000+ packages — broader customization scope than competitors offering only upstream-package-based or UI-limited customization, while maintaining your SLA

• Beyond containers, we offer Chainguard Libraries (Python, Java, JavaScript), Chainguard VMs, and Chainguard Actions — a broader single-vendor footprint across the SDLC than most competitors in this comparison, several of which cover only one or two of these categories.

• Beyond containers, we offer Chainguard Libraries (Python, Java, JavaScript), Chainguard VMs, Chainguard Actions, and Chainguard Agent Skills — a broader single-vendor footprint across the SDLC than most competitors, several of which cover only one or two of these categories

• The Chainguard FIPS Provider for OpenSSL 3.4 (CMVP #5132) is a Chainguard-owned, Chainguard-controlled cryptographic module — not an inherited or third-party-owned certificate. We can patch a CVE inside the FIPS boundary; most competitors can't.

• Compliance acceleration: FedRAMP, FIPS 140-3, PCI DSS, SOC 2, CMMC, EU CRA. See our FIPS commitment and FIPS FAQ for implementation details.

Customer case studies:

• VPBank saw a 90%+ reduction in CVEs, eliminating the burden of CVE management and freeing up engineering time for product development.

• Canva uses Chainguard Libraries to prevent malware that has plagued npm and PyPI for years.

• Appian estimates that it would have cost 15-20 full-time security engineers to DIY the level of in-house FedRAMP and IL5 compliance that Chainguard helps them achieve.

• Anduril developers no longer have to worry about the patching of the underlying base image, and can focus on doing what they do best, which is building software.

• Domino Data Lab, which handles sensitive information in highly-regulated industries, estimates that partnering with Chainguard has freed up an average of 4 hours per month per engineer of CVE remediation. Their hardened security posture has opened many doors to doing business with new security-conscious customers.

How Chainguard's pricing compares to the alternatives 

We know that adopting Chainguard may represent a significant investment. However, there is no comparable alternative for the value Chainguard provides. Especially for organizations pursuing compliance, our pricing is low relative to the cost of the engineer-hours required to address the supply chain management overhead of an insecure stack, or to dedicate engineers to DIY security compliance.

Our current pricing structure:

• Free tier: 5 images to test and deploy in production at absolutely no cost. Get started for free.

• Per image: Licensed by number and type (base, app, AI/ML, FIPS); contractual CVE SLA; all upstream supported tags

• Catalog: Full access to 2,800+ images; starts at $19K for a team of 10; licensed by engineering org size (scales non-linearly)

What does the alternative truly cost? One enterprise customer estimated that DIYing their own in-house security compliance program would have required 15-20 dedicated full-time security engineers. Even implementing a smaller subset of features requires a dedicated headcount for tracking, rebuilding, patching, testing, and distributing images.

Chainguard eliminates an estimated average of 4 hours of CVE remediation per engineer per month. We reduce scanner noise and false positives from 97.6% fewer CVEs, saving valuable time for your security team.

Compliance acceleration also directly impacts your revenue. In particular, if you're selling to any government customers, you must have FedRAMP-authorized products.

Check out the Chainguard pricing page to evaluate your options, or talk to an expert for a custom quote.

How to evaluate whether Chainguard is the right choice for you

Chainguard delivers outstanding value for:

• Organizations with higher security risks operating in regulated industries such as financial services, healthcare, government, or defense

• Teams pursuing compliance certifications (FedRAMP, SOC 2, PCI DSS, CMMC, EU CRA)

• Mid-to-large engineering orgs (500+ employees) shipping containers at scale

• Teams drowning in security remediation who want to reclaim their time for software development

• ISVs selling into regulated markets where certifications are a sales prerequisite

An alternative choice might make sense if:

• You have a small team with very minimal compliance requirements and can absorb DIY maintenance. Save yourself future headaches by being honest about the hidden costs. For any areas where your security is not a priority, consider the cost of engineer hours lost to remediation, as well as the business costs of lost revenue, sensitive data theft, and reputational damage.

• You only need runtime detection or cloud posture management, in which case you need a scanner/CNAPP. You may or may not need Chainguard in this case.

• You're just getting started with containers and aren't yet at the scale where image security is a bottleneck.

The right choice depends on your organization's risk tolerance, compliance requirements, and engineering capacity. For teams where security and compliance are critical, Chainguard is the clear winner for securing your pipeline against software supply chain risks from end to end and helping you deliver secure software faster. Talk to an expert today. If you’re on the fence, get started with our free offering to experience the difference.