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6 alternatives ranked by real activity

Open-source Checkmarx alternatives

A curated, ranked list of the 6 best open-source alternatives to Checkmarx.

The best open-source alternative to Checkmarx is Trivy. If that doesn't suit you, other good options are Semgrep, Grype, SonarQube and Dependency-Track.

Checkmarx alternatives are mainly Security tools, but some are also Developer Tools. 6 of them shipped code in the last 30 days, 6 can be self-hosted, and 4 use a permissive licence.

Last updated October 2, 2026 · ranked by GitHub stars, growth and recent commits

Trivy

A security scanner that finds vulnerabilities, misconfigurations, secrets and license issues in container images, filesystems, Git repositories and Kubernetes.

GitHub stars
38k
Last commit
today
Latest release
v0.75.0
Licence
Apache-2.0
trivy.devTrivy homepage screenshot

Trivy is a security scanner from Aquasec, written in Go and released under the Apache-2.0 license. It has scanners that look for different security issues and targets where those issues can be found. The README describes it as comprehensive and versatile, and it covers the major programming languages, operating systems and platforms.

Targets include container images, filesystems, remote Git repositories, virtual machine images and Kubernetes. Scanners look for OS packages and software dependencies in use, which produces an SBOM, known vulnerabilities (CVEs), infrastructure-as-code issues and misconfigurations, sensitive information and secrets, and software licenses. Its topics reference DevSecOps and vulnerability scanning.

Trivy is available through most common channels, including Homebrew, a Docker image and downloadable binaries, and integrates with platforms such as GitHub Actions, a Kubernetes operator and a VS Code plugin. Canary builds are produced with each push to the main branch. It suits developers, platform teams and security engineers who want to scan images and code in CI pipelines.

Key features

  • Scans container images and filesystems
  • Scans Git repositories and Kubernetes
  • Known vulnerability (CVE) detection
  • IaC misconfiguration and secret detection
  • SBOM generation and license scanning
  • GitHub Actions and VS Code integrations

Pricing: Free and open source under the Apache-2.0 license.

Read more about TrivyWebsite GitHub

Semgrep

Semgrep is a fast, open-source static analysis tool that finds bugs and enforces security and coding standards across 30+ languages.

GitHub stars
17k
Last commit
yesterday
Latest release
v1.179.0
Licence
LGPL-2.1
Self-hosted
Yes
Hosted version
Available
semgrep.devSemgrep homepage screenshot

Semgrep is a lightweight static analysis tool that searches code, finds bugs and enforces secure guardrails and coding standards. It supports more than 30 languages and can run in an IDE, as a pre-commit check or inside CI/CD workflows. The core engine is released under the LGPL-2.1 license.

It works like a semantic grep for code. Rules are written to look like the source code developers already write, so matching a pattern does not require abstract syntax trees, regular expressions or a separate query language, and a search for a value can match code that computes it. The aim is to find variants of a known bug quickly.

The Community Edition analyzes code within a single function or file, which the maintainers note means it will miss many true positives for security work. For SAST, software composition analysis and secrets scanning they recommend the commercial Semgrep AppSec Platform, which adds cross-file and data-flow analysis, AI-assisted triage and managed rule sets.

Key features

  • Pattern-based code search that looks like code
  • Support for 30+ programming languages
  • Runs in IDEs, pre-commit hooks and CI/CD
  • Custom rules without ASTs or regex
  • SAST, SCA and secrets scanning via AppSec Platform

Pricing: Free for up to 10 contributors. Teams starts at $30 per contributor per month (Secrets $15); Enterprise is custom.

Grype

Command-line vulnerability scanner that checks container images, filesystems and SBOMs for known security issues in OS and language packages.

GitHub stars
13k
Last commit
today
Latest release
v0.120.0
Licence
Apache-2.0

Grype is an open-source vulnerability scanner for container images and filesystems. You point it at an image, a directory or a software bill of materials (SBOM), and it reports known vulnerabilities in the packages it finds, so teams can catch risky dependencies before software ships.

It covers major operating system package ecosystems such as Alpine, Debian, Ubuntu, RHEL, Oracle Linux and Amazon Linux, as well as language packages for Ruby, Java, JavaScript, Python, .NET, Go, PHP and Rust. Docker, OCI and Singularity image formats are supported. Results can be prioritized with EPSS, KEV and risk scoring, and OpenVEX documents can filter or augment findings.

Grype is written in Go and released under the Apache-2.0 license. It can be installed through Homebrew, Docker, Chocolatey, MacPorts and other routes, and the documentation includes a getting started guide, CLI reference and configuration reference. Development is sponsored by Anchore, which also handles commercial support requests for Grype and its companion tool Syft.

Key features

  • Scans container images, filesystems and SBOMs
  • OS package support for Alpine, Debian, Ubuntu, RHEL
  • Language package support including Python, Go, Java
  • Docker, OCI and Singularity image formats
  • EPSS, KEV and risk-score prioritization
  • OpenVEX filtering of scan results

Pricing: Free and open source under the Apache-2.0 license; commercial support is available from Anchore.

Read more about GrypeGitHub

SonarQube

Static code analysis platform that finds bugs, vulnerabilities and maintainability problems in code, in IDEs, pull requests and CI.

GitHub stars
11k
Last commit
yesterday
Latest release
26.9.0.129388
Licence
LGPL-3.0
Self-hosted
Yes
sonarqube.orgSonarQube homepage screenshot

SonarQube is a code quality and security platform. Its static analysis uses techniques such as symbolic execution and data and control flow analysis to inspect source code, find bugs and vulnerabilities, and explain what to fix and why. Results appear in the IDE, in pull requests and in CI pipelines.

This repository holds the source of the SonarQube Community Build, the free, open-source edition that shares the analysis used across the product line. It reports reliability bugs, security vulnerabilities and security hotspots, maintainability and structural issues, and coverage on new code. More than 40 programming languages and frameworks are covered, and the same code always produces the same findings.

The project positions itself as a verification step for code written by people or by AI agents before it merges. SonarQube is written in Java and licensed under LGPL-3.0. Commercial editions from SonarSource add further features, while the Community Build can be run on your own servers.

Key features

  • Static analysis for bugs and vulnerabilities
  • Security hotspot review guidance
  • Maintainability and structural issue detection
  • Coverage tracking on new code
  • Support for 40+ languages and frameworks
  • Feedback in IDE, pull requests and CI

Pricing: A free tier covers private projects up to 50k lines of code and an open-source Community Build is available. The Team plan starts at $34 a month for up to 100k lines of code; Enterprise is quoted.

Dependency-Track

An OWASP component analysis platform that uses SBOMs to identify and reduce risk in the software supply chain, with vulnerability tracking across projects.

GitHub stars
4.3k
Last commit
today
Latest release
5.1.1
Licence
Apache-2.0
Self-hosted
Yes
dependencytrack.orgDependency-Track homepage screenshot

Dependency-Track is a component analysis platform from the OWASP community that helps organizations identify and reduce risk in their software supply chain. It takes an approach built on the Software Bill of Materials (SBOM), analyzing the components listed for each project.

Repository topics show how it works with CycloneDX SBOMs, Package URLs, the National Vulnerability Database and OSS Index to detect known vulnerabilities in components, supporting software composition analysis, DevSecOps and security automation. A Docker Compose quickstart lets you get a local instance running in a few minutes.

Version 5 is the current line, while version 4 is in maintenance mode on the 4.14.x branch and reaches end-of-life in December 2026, with a migration guide provided. The frontend, documentation and Helm charts live in separate repositories, a monthly community meeting is open to users, and the project is written in Java under the Apache-2.0 license.

Key features

  • SBOM-based component analysis
  • CycloneDX and Package URL support
  • Vulnerability data from NVD and OSS Index
  • Software supply chain risk tracking
  • Docker Compose quickstart
  • Helm charts for deployment

Pricing: Free and open source under the Apache-2.0 licence.

Horusec

Horusec is a static application security testing tool that scans code in many languages for vulnerabilities and leaked secrets with one command.

GitHub stars
1.3k
Last commit
6 days ago
Latest release
v2.8.0
Licence
Apache-2.0
Self-hosted
Yes

Horusec is an open-source tool for static code analysis focused on security. It scans a project for security flaws during development, and can also search for leaked keys and credentials in project files and in Git history, so issues are found before they reach production.

It supports a wide range of languages and formats, including Java, Kotlin, Python, Ruby, Go, JavaScript, TypeScript, PHP, C#, Dart, Elixir, Shell, Terraform, Kubernetes manifests and Nginx configuration. It orchestrates multiple analysis tools, which is why Docker is recommended, although a flag allows running without it at the cost of analysis power. It can be used from the command line by developers, in CI/CD pipelines by DevSecOps teams, through a web application and in Visual Studio Code.

Horusec is written in Go and licensed under Apache-2.0, with installers for Mac, Linux and Windows and documentation listing every supported tool and language. It runs on your own machines or build servers. It suits development teams that want free SAST scanning in their pipelines.

Key features

  • Static analysis across many languages
  • Secret and key leak detection
  • Scanning of Git history
  • CLI and CI/CD pipeline usage
  • Horusec-Web application
  • Visual Studio Code integration

Pricing: Free and open source under the Apache-2.0 licence.

Checkmarx alternatives: questions

What is the best open-source alternative to Checkmarx?
Trivy is the top-ranked open-source alternative to Checkmarx on Enlisted: A security scanner that finds vulnerabilities, misconfigurations, secrets and license issues in container images, filesystems, Git repositories and Kubernetes. Other strong options are Semgrep, Grype, SonarQube and Dependency-Track.
Are these Checkmarx alternatives free?
All 6 are open source, so the code is free to use under its licence, and 6 of them can be self-hosted on your own server. 1 also offer a paid or managed cloud version if you'd rather not host it yourself.
How is this list of Checkmarx alternatives ranked?
By a score built from GitHub stars, star growth over the last 30 days and how recently the code changed. 6 of these projects shipped code in the last 30 days. Data is refreshed daily, and nobody can pay to move up.

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