Vulkro vs Snyk

The two things this page leads with:

1. Your source code never leaves your machine. Snyk uploads code snippets to its cloud for analysis; Vulkro never uploads anything. This is the sharpest architectural distinction in the whole comparison set.
2. Vulkro's accuracy numbers are reproducible. On our published corpus Vulkro scores precision 0.81, recall 0.58, F1 0.68 at its default high-confidence setting. The harness, the corpus, and the scoring code are public; Snyk's numbers are vendor-published claims.

Snyk is the gravity well of commercial SAST + SCA. Big enterprise deployments, IDE plugins for every editor, polished onboarding, extensive vulnerability database. The decision comes down to your data-handling posture: Snyk is SaaS-first, Vulkro is offline-first.

At a glance​

Benchmark numbers​

Measured on our published corpus, July 2026: 15 deliberately vulnerable public codebases with 90 catalogued bugs, of which 76 sit in the languages Vulkro analyzes deeply (JS/TS, Python, Go). Scored at Vulkro's default high-confidence setting.

Snyk Code is not in the published corpus run, and this page invents no numbers for it: the tool is auth-gated (snyk auth plus an account), the harness skips it when unauthenticated, and a terms-of-service check on benchmarking it is still pending. The point stands anyway: Vulkro's numbers are reproducible against the open SAST field (Semgrep CE, Bearer), while Snyk's are vendor-published. Reproduce the open-field numbers yourself with bench/comparison/run.sh --tier1 --tools vulkro,semgrep,bearer.

The architectural distinction​

Snyk is a SaaS product. The CLI is a convenient surface, but the analysis (for Snyk Code) and the vulnerability database (for Snyk Open Source) live in Snyk's cloud. Even when you point Snyk at a local project:

• Code snippets are uploaded to Snyk's servers for analysis.
• Findings are stored in your Snyk account, visible to anyone with org access.
• The CLI requires authentication; offline operation is limited to running the broker proxy.
• Pricing is per-developer per-month, and it auto-renews unless you explicitly cancel.

Vulkro is offline-first. The detection engine + CVE bundle both live on your machine. VULKRO_OFFLINE=1 enforces zero network calls at the process boundary. Vulkro Free is permanent (no card, no expiry) with the core scan and supply-chain catalog. Vulkro Pro is per-term, $39/month or $349/year, and the term expires. After expiry the CLI drops to the Free tier and keeps running; the Pro-only depth (compliance packs, portfolio, deep detector packs, active probe) prompts for renewal. CVE bundle updates land on Free and Pro on the same schedule. You buy a Pro refresh when you decide to.

The contrast cuts hardest in three buyer scenarios:

1. Defense / FedRAMP / regulated industries where customer data cannot touch a vendor cloud. Snyk's broker proxy mitigates some of this; Vulkro removes the question entirely (no proxy needed; no upload exists).
2. Open-source maintainers who want a deterministic CI scan that doesn't depend on a vendor account or a paid tier.
3. Procurement teams burned by auto-renewing SaaS lines that nobody owns the cancellation for. Vulkro's term-expires model is a positioning advantage here.

Where Snyk wins​

Concessions first, because they are real:

• Ecosystem breadth. IDE plugins for every editor, GitHub PR comments, JIRA / ServiceNow integrations, and years of enterprise deployment polish. Vulkro's integration surface is narrower.
• More languages. Snyk Code analyzes most modern languages; Vulkro's deep analysis is JS/TS, Python, and Go.
• A managed vendor relationship. Onboarding, dedicated CSMs, and contractual SOC 2 coverage from the vendor, if that is what your procurement process needs.
• AI-assisted fixes. DeepCode AI fix is a real feature Vulkro deliberately does not have (Vulkro's autofix is deterministic templates, no LLM); if an AI fix loop inside the vendor tool is what you want, Snyk has it.

All of it comes with the cloud upload and the SaaS billing posture described above. If those are acceptable, Snyk is a strong product.

When to pick Vulkro​

• Source upload to a vendor is a hard "no" in your contract or policy.
• Your scan must work in CI without authenticating to a vendor service.
• You want the bench numbers (precision / recall / F1) to be externally reproducible, not vendor-published.
• You prefer per-term licensing that expires rather than auto-renews. Renewal is a deliberate buy, not a calendar event.
• You want OWASP API Top 10 + LLM Top 10 (LLM01 / LLM06) without a separate AI Trust add-on.

What about migration?​

Vulkro doesn't yet have a direct Snyk-rule-import shim like vulkro rules import-semgrep. Snyk Code rules are proprietary and not exported in a portable format. The migration path is:

1. Run Snyk for the categories you already track.
2. Run Vulkro alongside; both emit SARIF that GitHub Code Scanning ingests.
3. Diff the findings for a release cycle to calibrate trust.
4. Drop the Snyk subscription on renewal (no clawback; you keep any existing findings you've already exported).

Try both side by side​

# In your project root:
vulkro scan . --format sarif > vulkro.sarif
snyk test --sarif-file-output=snyk.sarif

# Diff in your favourite SARIF viewer.

Both tools emit SARIF; GitHub Code Scanning ingests either format.

See also: Vulkro vs Semgrep, Vulkro vs Bearer, Safety, CVE bundle changelog.