Snyk vs Trivy

Where Trivy wins

Coverage stops being a budget decision

Snyk's billing unit is the contributing developer, defined on its own plans page as someone who made a commit to a monitored private repo in the last 90 days, and the count is taken from the default branch of the repositories you connect. Connect one more service and you inherit everyone who commits to it. Trivy has no such number, so the question "should we add this repo to scanning" goes back to being a technical question. That matters more than the invoice: a meter that discourages coverage is a security problem wearing a finance costume.

One binary covers three of the four jobs

Trivy scans container images, filesystems, git repositories, IaC configuration and secrets, and emits CycloneDX or SPDX SBOMs, from a single command-line tool with no daemon and no account. In practice that is the whole non-SAST half of Snyk in one CI step, and it works identically on a laptop, in a pipeline and in a pre-commit hook, which is not true of tools that need a hosted project to report into.

The project is genuinely alive

37,215 GitHub stars and commits landing within days of any given check, backed by Aqua Security with a commercial product on top. That last part is the reassuring bit rather than the worrying one: there is a funded reason for the engine to keep improving. It also means the usual open-source risk here is not abandonment, it is that the polished dashboard lives behind the paid platform.

Nothing is feature-gated to force an upgrade

The scanner is not a crippled community edition. You are not choosing between "the free Trivy" and "the Trivy in the benchmarks", which is a real distinction elsewhere in this category and one worth checking before you assume an open-source tool is the same product its marketing measures.

Where Snyk still wins

Snyk Code has no Trivy equivalent, and this is not a small gap. Static analysis of code your team wrote, the SQL injection and path traversal class of finding, is a different engine to matching a dependency against a vulnerability list. Trivy does not attempt it. If your appsec programme lists SAST as a control, replacing Snyk with Trivy alone quietly removes that control while the dashboard still looks green. The honest swap is Trivy plus a SAST engine, which is two tools and two sets of findings to triage.

The fix is worth more than the finding, and Snyk ships the fix. Snyk generates remediation pull requests from its own curated database, including the minimum version that resolves the issue. Trivy tells you the version is vulnerable and stops. Most teams close that gap with Renovate or Dependabot, which works well, but you are now running a scanner, a bot and the glue between them where you had one subscription. Cost that engineering time honestly before calling the switch free.

And the meter can be the cheap option. Because Snyk counts committers rather than employees, a large organisation where only a small group merges to default branches pays for that group. If you have 400 staff and 30 people committing, per-committer billing is working in your favour, and swapping to a per-seat tool would cost more.

Migrating Snyk to Trivy

The path most teams take:

1. Inventory what you actually use. Open Snyk and list which of Open Source, Container, IaC and Code are producing findings anyone acts on. If Code is one of them, this migration is Trivy plus Semgrep, not Trivy, and you should plan it as two projects.
2. Add Trivy alongside, not instead. A single CI step running the Trivy binary with a SARIF output, uploaded wherever your Snyk SARIF already goes. Nothing else changes, and rollback is deleting one step.
3. Reconcile for one sprint. Compare finding counts per repository. Expect differences in both directions: different databases disagree on severity and reachability, and a delta is information rather than a bug. Note that you are paying for both tools during this window.
4. Decide the remediation half explicitly. Before cancelling, have Renovate or Dependabot open the upgrade pull requests, and confirm someone owns merging them. This is the step teams skip, and it is why some migrations end with fewer vulnerabilities detected but more shipped.
5. What does not move. Project history, ignore rules and the audit trail of past findings stay in Snyk and disappear when the account closes. Export anything compliance may ask for before the final day.