Trivy

Trivy is an open-source security scanner for repositories, artifacts, containers and Kubernetes. It suits teams that want vulnerability and configuration checks in developer workflows or self-hosted environments. Its breadth and zero price are compelling, but package blind spots and plugin risks call for care.

Overview

Trivy combines vulnerability, misconfiguration, secret and license scanning with SBOM generation. It can examine operating-system and language packages, some non-packaged software, Kubernetes components, and infrastructure-as-code files. That range makes it useful across development and deployment, rather than only for container images.

The Apache-2.0-licensed project is Go software. Trivy automatically fetches and maintains the security databases used for scans, and can run as a CI/CD binary without middleware or database dependencies. It also supports air-gapped environments, a practical advantage for isolated networks.

Key features

Scanning and reporting

Built-in IaC checks cover Docker, Kubernetes, Terraform and CloudFormation, and users can write custom checks. Trivy can generate SBOMs and export results in formats such as JUnit XML, SARIF and AWS Security Finding Format. These options suit teams that need findings to feed existing reporting or security processes.

Workflow integrations

Official integrations include a GitHub Action and an Azure DevOps Pipelines Task; the ecosystem also includes a VS Code plugin and community integrations for other CI systems. Trivy Operator can continuously scan Kubernetes workloads and the cluster. The distinction between official and community integrations matters: the core team supports the former, while community integrations are not guaranteed to be maintained or secure.

Coverage and security cautions

Trivy focuses on packages from official operating-system vendors and may skip third-party packages. Its vulnerability scanner does not support third-party or self-compiled packages and binaries, so teams with custom or externally sourced software should not treat a clean scan as complete coverage.

Plugins run with the user's permissions and are not sandboxed, and publicly available plugins are not audited for security. That makes plugin selection a security decision, not a harmless way to add features.

Pricing

Trivy — free. The free plan is the Apache-2.0-licensed open-source scanner, with no free trial. There are no paid tiers or plan quotas in the stated offering. It is a strong fit for teams able to operate and integrate a self-hosted scanner; readers seeking a paid, packaged service should compare commercial alternatives instead.

Platforms

Official installation options cover Linux, macOS, Windows and FreeBSD, with container images, release binaries, package repositories, Homebrew and Windows downloads. Trivy is also available as a self-hosted deployment. That choice of installation route makes it adaptable to developer machines and pipeline environments.

Who it's for

Trivy is best for engineering and security teams that want a broad set of scanners at no license cost, especially those working with containers, Kubernetes, IaC or CI/CD. Its air-gapped support and minimal deployment dependencies suit constrained environments. It is less suitable as the sole vulnerability check where third-party or self-compiled packages are important, or where teams cannot safely assess unsandboxed plugins.

Pros and cons

• Pro: Vulnerability, secret, license and IaC scanning plus SBOM generation cover several security tasks in one open-source tool.
• Pro: CI integrations, Kubernetes Operator support, air-gapped operation and dependency-light binary deployment support varied workflows.
• Pro: The free Apache-2.0 license avoids per-scan charges in the stated plan.
• Con: Unsupported third-party and self-compiled packages can leave meaningful vulnerability coverage gaps.
• Con: Unsandboxed, unaudited public plugins introduce risk when granted the user's permissions.
• Con: Community integrations lack the support and security assurance of official integrations.

Alternatives

Grype is another free, Apache-2.0-licensed vulnerability scanner for Linux, macOS, Windows and self-hosted use. Choose it when you want a free vulnerability-scanning alternative; Trivy is the better fit when its additional scanner types, SBOM generation or listed integrations matter.

Google Artifact Analysis charges $0.26 per scan for automatic scanning, with subsequent scans of the same image free, and $0.26 per scan for on-demand scanning. Consider it when a paid, per-scan model fits better than Trivy's free self-hosted scanner.

Aqua Container Security is a paid option with a free trial and custom pricing. Sonatype Container Scanner is a paid option for Windows and Linux. RapidFort offers a free plan with five curated near-zero-CVE images from a limited catalog, daily rebuilds and patching, and Alpine, Debian, UBI and Ubuntu LTS images. Checkmarx Container Security is a paid web-based option. Alibaba Cloud Container Registry offers free and freemium registry plans. Sysdig Secure is a paid option licensed by host count, or compute instances for CSPM.

For category comparisons, see Container Image Scanning Tools, Container Security Software, Software Composition Analysis Software, Infrastructure as Code Security Software and Cloud Vulnerability Scanners.

Verdict

Choose Trivy if you want a capable, free scanner spanning code, packages, containers, Kubernetes and IaC, with flexible deployment and workflow integrations. Its main trade-off is incomplete coverage for third-party and self-compiled packages; teams exposed to those components should pair it with another check or choose a tool whose coverage meets that need.