Free alternatives to Snyk
3 free programs that can replace Snyk, each pairing checked by Radar's AI reviewer or by Radar.
Snyk is an online service that scans software projects for known vulnerabilities in the code you write, the libraries you depend on, containers and infrastructure files. Developers and security teams connect it to their code repositories and build pipelines so that problems are flagged automatically. It works as a hosted service with free and paid plans.
Before switching, list what you scan today: application code, dependencies, container images, configuration files, licences. Open-source scanners may cover only some of these, so check coverage for your languages and package managers. Find out where results come from, how often the vulnerability data is updated, and how findings are reported in your pipeline, in pull requests or in a dashboard. Teams often depend on policies, ignore rules, automatic fix suggestions and reports for managers; ask which of those you would have to rebuild. Run the new tool and the old one side by side on the same project and compare findings, because different scanners report different things and no single list is complete.
Trivy is among the options listed below.
| Program | Ease | You need | Risk signals | Stars | Downloads this week |
|---|---|---|---|---|---|
| TrivyScans software, containers and cloud setups for known security holes, leaked passwords and risky settings. | Ease Binstaller plus one simple step · Windows | Nothing extra | Attention · 1 | 38,882+137 in 5 days | 2,635,024 |
| Security Audit SkillA skill that turns an AI coding agent into a security auditor and writes a report of what it found. | Ease Cinstall 1 or 2 tools · Windows | Node.js | Attention · 1 | 55,343+6,769 in 5 days | — |
| php2shell CheckerChecks whether a website or local PHP install is running a version affected by a known PHP vulnerability. | Ease Cinstall 1 or 2 tools · Windows | Node.js | Few signals | 1,456+18 in 4 days | — |
Frequently asked questions
Which free alternative to Snyk is the easiest to install?
Trivy has the highest ease rating among the 3 options: B (installer plus one simple step · Windows).
Is there a free alternative to Snyk for Windows, Mac and Linux?
Windows: Trivy, Security Audit Skill, php2shell Checker. macOS: Trivy, Security Audit Skill, php2shell Checker. Linux: Trivy, Security Audit Skill, php2shell Checker.
Are the alternatives to Snyk really free?
2 of the 3 are completely free; 1 depends on a paid service or key for some features.
How can I tell whether an alternative is trustworthy?
Each card shows the risk signals found, with the evidence. 1 of the 3 has no signal rated attention or high. See also the guide How to find a GitHub project's official repository and avoid fake copies.