Snyk
Replaceable in one session with an AI coding agent.
Security scanning across dependencies, code, containers and infrastructure files, with pull requests that fix a vulnerable package for you.
Assemble scanning from free tools in CI. STACK - All of these run in your existing CI, free DEPENDENCIES - osv-scanner against the public advisory database, or your package manager's own audit command - Fail the build on high severity only; failing on everything gets the check disabled within a week CODE - Semgrep with the free rule set, plus rules of your own for patterns specific to your codebase CONTAINERS - Trivy against the built image, and against the base image separately - Most findings come from the base image; pinning a smaller one fixes more than any patch SECRETS - gitleaks on every commit and in a pre-commit hook - A committed secret is the finding that actually costs you money UPDATES - Renovate grouping non-major updates weekly, security updates immediately and separately Include the CI jobs, the severity thresholds and the pre-commit hook.
What you lose
- A vulnerability database curated beyond the public advisories, with reachability analysis to cut false positives
- Fix pull requests that pick a version that actually works
- Container and infrastructure scanning in the same tool
If you would rather not build
- GitHub Advanced Security, if you are already there
- Dependabot, which is free
The escape hatch
open source · no votes, no paid placement
Trivy
$0Scans containers, filesystems and dependencies for known vulnerabilities.
aquasecurity/trivyfree · open source
Semgrep
$0Static analysis with a large free rule set and rules you can write.
semgrep/semgrepfree · open source
Why this verdict
our own opinion · changed only by a person
74/100
Verdict yes at 74. The free tools cover most of it in CI; what you lose is reachability analysis, which mostly means more noise to triage.
History
tracked since 10 Aug 2026 · nothing is ever overwritten
Nothing recorded yet. This chart fills in once the page has visitors, votes or prompt copies — it will not draw a flat line to look busy.
Questions about Snyk
answered from the record above
Is Snyk free?
No — the plan we track is $25 a month. Team from around $25 per contributing developer per month billed monthly.
Can you replace Snyk by building your own?
YES. Replaceable in one session with an AI coding agent. Replacement score 74 out of 100, build time one session. Read what you lose before you decide.
How much does Snyk cost?
$25 a month on Team — $300 a year. Recorded 10 Aug 2026.
What do you lose by replacing Snyk?
A vulnerability database curated beyond the public advisories, with reachability analysis to cut false positives; Fix pull requests that pick a version that actually works; Container and infrastructure scanning in the same tool. If any of those carry weight for you, keep paying.
Is there an open-source alternative to Snyk?
Yes: Trivy, Semgrep. The prompt on this page is for when you want it your way instead.
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