DockSec vs Snyk

Snyk is the closest commercial equivalent for container scanning. The comparison is less about features than about where your findings go and what you are willing to pay.

The structural difference

Snyk is a platform. Scanning is the entry point to a hosted service that stores findings, tracks them over time, and integrates with ticketing. That model gives real benefits - dashboards, historical trends, support contracts - and one structural cost: your findings leave your network.

DockSec is a CLI. There is no service, no account, and nothing is transmitted. --scan-only does not even require an API key. For some organisations that is a minor convenience; for regulated, government and air-gapped environments it is the qualifying criterion, and no amount of Snyk's feature depth substitutes for it.

Comparison

	Snyk	DockSec
Licence	Commercial, limited free tier	MIT, no tiers
Account required	Yes	No
Findings leave your network	Yes	No
Telemetry	Yes	None
Offline operation	No	Yes, with a local advisory DB
Reachability analysis	Yes, for application code	No - and says so
Exploit chains across services	No	Yes
Automatic Dockerfile repair	No	Yes
Languages beyond containers	Many	None - containers only
Commercial support	Yes	Community

Where Snyk is the better choice

• You need multi-language application scanning, not just containers. DockSec is container-only by design.
• You want reachability analysis for application dependencies. Snyk's is genuine and DockSec has none - a DockSec finding means the vulnerable version is present, not that the code path is invoked.
• You need a support contract and an SLA. DockSec is a community project.
• You want a managed dashboard and historical tracking without building it.

Where DockSec is the better choice

• Data locality is a hard requirement. This is the big one and it is not negotiable at Snyk: their model requires transmitting findings.
• You run Compose stacks and care about how services combine.
• Budget is zero and you still want prioritised, actionable output.
• You want to read the code that decides what is critical in your pipeline.

Honest note on prioritisation

Both tools prioritise, and Snyk's risk scoring is mature and well-engineered. DockSec's advantage here is not sophistication - it is transparency. The scoring is deterministic, documented, versioned (score_version), and the tiering rule is a readable function rather than a proprietary model. In an enterprise review, "here is the algorithm" is sometimes worth more than a better-tuned score you cannot inspect.