Greenbone vs Syft

Greenbone and Syft both sit in the vulnerability and software-supply-chain security space but serve very different jobs: Greenbone is a German vulnerability…

Best for Greenbone: Greenbone fits organizations that need automated network and infrastructure vulnerability scanning backed by a daily-updated database of 100,000+ tests, with deployment flexibility across hardware appliances, virtual machines, or cloud, and ISO 9001/27001/14001 certification.
Best for Syft: Syft fits development and platform teams that need to generate detailed SBOMs from container images and filesystems across a wide package ecosystem (Alpine, Debian, RPM, Go, Python, Java, JavaScript, Ruby, Rust, PHP, .NET) in CycloneDX, SPDX, or Syft's own format.

At a Glance

 GreenboneSyft
Primary categorySecuritySecurity
RatingNot documentedNot documented
Pricing modelOpen source plus commercial appliances and subscriptions (quote-based)Free
Starting priceFree (OpenVAS/GVM open source); paid appliances via quote, free 14-day trial availableNot documented
Free planYesYes
Free trialYesNot documented
PlatformsWebNot documented
Team collaborationNot documentedNot documented
AI featuresNot documentedNot documented
Public APIYesNot documented

Key Differences

Primary Function

Greenbone: Greenbone's core feature is Automated vulnerability scanning of networks and IT infrastructure, backed by a Daily-updated test database of 100,000+ tests.

Syft: Syft's core function is SBOM generation, creating a bill of materials from container images, filesystems, and archives rather than scanning for vulnerabilities directly.

Vulnerability scanning identifies exploitable weaknesses, while SBOM generation documents software composition — the two answer different security questions.

Pricing Model

Greenbone: Greenbone offers a free OPENVAS FREE tier alongside paid BASIC, SCAN, and SECURITY INTELLIGENCE tiers, all priced on a 'Contact for pricing' basis with no published numbers.

Syft: Syft is entirely free and open source under Apache-2.0, with a single Open Source plan and no paid tier at all.

Whether a tool has any paid tier at all — and whether that pricing is public — shapes procurement timelines and total cost.

Deployment Options

Greenbone: Greenbone is available as hardware appliances, virtual machines, or cloud-based deployments, giving buyers flexibility in how they run it.

Syft: Syft installs via Homebrew, Docker, Scoop, Chocolatey, and Nix as a command-line tool, with no hardware appliance or hosted service option documented.

Deployment flexibility matters for organizations with specific infrastructure constraints, such as air-gapped networks needing a hardware appliance.

Certifications & Compliance Posture

Greenbone: Greenbone holds ISO 9001, ISO 27001, and ISO 14001 certifications and states its operations are GDPR-compliant.

Syft: Syft's documented facts do not mention formal certifications; its compliance value comes from generating audit-ready SBOMs rather than the vendor's own certification status.

Vendor-level certifications can matter for procurement in regulated industries, separate from what the tool itself produces.

Output Format

Greenbone: Greenbone's output is vulnerability scan results from its 100,000+ test database rather than a structured software inventory document.

Syft: Syft outputs structured SBOMs in CycloneDX, SPDX, or Syft's own JSON format, plus signed attestations using the in-toto specification.

Structured, standardized SBOM output is required for many supply-chain compliance frameworks, distinct from vulnerability scan reports.

Feature-by-Feature

Scanning & Detection

FeatureGreenboneSyft
Network vulnerability scanningAvailableUnavailable
SBOM generationUnavailableAvailable
Daily-updated vulnerability test databaseAvailableUnavailable

Deployment & Access

FeatureGreenboneSyft
Free tierAvailableAvailable
Hardware appliance optionAvailableUnavailable
CLI/package-manager installationNot documentedAvailable

Compliance & Certification

FeatureGreenboneSyft
ISO certificationAvailableNot documented
GDPR-compliant operations statedAvailableNot documented
Standards-based SBOM output (CycloneDX/SPDX)UnavailableAvailable

Pricing Compared

Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.

Greenbone

Community Edition (GVM/OpenVAS) — Free N/A (self-hosted, open source)
OpenVAS Basic — Contact for pricing (free 14-day trial) Custom
OpenVAS Scan — Contact for pricing Custom
OpenVAS Security Intelligence — Contact for pricing Custom

Syft

Open Source — Free

Pros & Cons

Greenbone

Pros

  • Free, actively maintained open-source scan engine with a long track record dating back to 2008
  • Strong GDPR and data-residency positioning, with on-premises deployment options for sensitive environments
  • Close historical ties to Germany's BSI federal security authority lend added credibility
  • Flexible deployment via hardware appliance, virtual appliance, or self-hosted open source

Cons

  • Commercial pricing is not published and requires going through a sales quote process
  • Hardware appliance procurement can be slower and less flexible than pure cloud-based competitors
  • Smaller global brand recognition than Tenable, Qualys or Rapid7 outside Europe
  • Newer AI and centralized intelligence features are still rolling out and less mature than the core scanner

Syft

Pros

  • Free and open source under Apache-2.0
  • Wide package ecosystem coverage across OS and language-specific dependencies
  • Supports industry-standard SBOM formats, including CycloneDX and SPDX
  • Designed to pair directly with Grype for vulnerability scanning
  • Multiple install options, including Homebrew, Docker, Scoop, Chocolatey, and Nix

Cons

  • Command-line tool without a built-in graphical interface
  • Best used alongside a separate scanner such as Grype for vulnerability detection, adding a setup step
  • No official managed or hosted service documented

Use Cases

Choose Greenbone: Greenbone fits organizations that need automated network and infrastructure vulnerability scanning backed by a daily-updated database of 100,000+ tests, with deployment flexibility across hardware appliances, virtual machines, or cloud, and ISO 9001/27001/14001 certification.
Choose Syft: Syft fits development and platform teams that need to generate detailed SBOMs from container images and filesystems across a wide package ecosystem (Alpine, Debian, RPM, Go, Python, Java, JavaScript, Ruby, Rust, PHP, .NET) in CycloneDX, SPDX, or Syft's own format.
Need both: A security team could use Syft in CI/CD to generate an SBOM documenting exactly what's inside each container image before deployment, while running Greenbone's network vulnerability scanners against the live infrastructure hosting those containers to catch network-level and configuration vulnerabilities that an SBOM alone wouldn't reveal.

Greenbone

  • Enterprise vulnerability scanning — Running scheduled scans across servers, endpoints and network devices to find and prioritize missing patches and misconfigurations.
  • Public sector and regulated compliance — Meeting GDPR and government security requirements with on-premises scanning that keeps vulnerability data within national or organizational boundaries.
  • Small business entry-level scanning — Installing OpenVAS Basic to quickly identify and remediate obvious security weaknesses without a large security team.

Syft

  • Software supply chain inventory — Organizations generate SBOMs with Syft to document dependencies across container images and codebases.
  • SBOM generation for vulnerability scanning — Teams generate SBOMs with Syft and scan them with Grype to identify vulnerable dependencies.
  • SBOM format conversion — Teams convert SBOMs between CycloneDX and SPDX formats using Syft to satisfy different downstream tooling requirements.

Frequently Asked Questions

Do Greenbone and Syft do the same thing?

No. Greenbone is a network and infrastructure vulnerability scanner, while Syft is an SBOM generator that inventories software components inside container images and filesystems. They address different parts of a security program.

Is Syft free?

Yes, Syft is entirely free and open source under Apache-2.0. Greenbone offers a free OPENVAS FREE tier but also sells paid BASIC, SCAN, and SECURITY INTELLIGENCE tiers priced on a contact-for-pricing basis.

Where is Greenbone based?

Greenbone is headquartered in Germany and holds ISO 9001, ISO 27001, and ISO 14001 certifications, with operations stated to be GDPR-compliant.

Can Syft scan for vulnerabilities like Greenbone does?

No, Syft only generates SBOMs; it is designed to pair with Grype for vulnerability scanning. Greenbone performs vulnerability scanning directly using a daily-updated test database of 100,000+ tests.

How is Greenbone priced?

Greenbone's paid products are subscription-based and scaled by scanning scope, such as the number of IPs or assets covered, though exact prices are not published and require contacting sales.

What formats does Syft support for SBOM output?

Syft can output SBOMs in CycloneDX, SPDX, and its own Syft JSON format, and can convert between these formats plus create signed attestations using the in-toto specification.

Read the full Greenbone review · Read the full Syft review