Comparison
Stackwatch and Snyk: platform or early warning system?
Snyk covers a lot and needs someone to triage the results. Stackwatch does one thing: tell you whether a new vulnerability hits your stack and what to do now. Here is the honest comparison.
Updated · Stackwatch team
The short version
Snyk is a comprehensive AppSec platform: your own code, open source packages, container images, infrastructure as code. Stackwatch is narrower and wants to answer one question fast: does this new vulnerability hit me, and what do I do now? Which one fits depends less on features than on whether someone on your team has time to triage findings.
What Snyk checks
- Snyk Open Source reads manifests and lockfiles and reports vulnerable packages, optionally with fix pull requests.
- Snyk Container scans images: operating system packages (dpkg, rpm, apk), application dependencies inside the image and some runtimes installed without a package manager. The docs name Node.js and OpenJDK for this. Snyk also detects the base image and recommends upgrades.
- Snyk Code and Snyk IaC check your own code and infrastructure configuration.
For prioritization, Snyk uses a risk score from 0 to 1000 (early access, for Open Source and Container) that factors in EPSS, exploit maturity and, for Java and JavaScript, the reachability of vulnerable functions. What EPSS measures and how it differs from CVSS and KEV is covered in the article on CVSS, EPSS and CISA KEV.
Where they differ
Runtime detection. Snyk Container detects the Node.js runtime in an image and suggests a newer base image. For that, the image has to be scanned, meaning built and handed to Snyk. For PHP, Snyk says itself (blog, 22 October 2026): PHP compiled from source, including the official php: Docker images, is not detected by Snyk Container. PHP installed from distribution packages is reported once the distribution has published its advisory. For the Python interpreter we found no statement either way. Stackwatch reads the runtime directly from the repo: FROM php:8.3.35-fpm, .php-version, .nvmrc, .python-version, CI configs. No build needed, with evidence from file and line.
Volume of findings. A platform that scans everything finds a lot. That is its strength when someone works through the list, and its weakness when nobody does. Stackwatch only alerts on high and critical vulnerabilities (plus CISA KEV entries) with a match in your stack, with the fix for the affected repo and a workaround.
Data residency. With Snyk, data stays in the EU region (Frankfurt) only on the Enterprise plan, and according to its docs some data types such as billing, logs, support and authentication data are stored globally. Stackwatch is hosted in Germany, with a DPA under Art. 28 GDPR. Details are on the security and privacy page.
The comparison
| Snyk | Stackwatch | |
|---|---|---|
| Scope | Code, packages, containers, IaC | New vulnerabilities against your stack down to the runtime |
| Runtime | Node.js and OpenJDK in container images, PHP from official php: images not detected per Snyk; base image recommendations | PHP, Node.js and Python directly from the repo, no image build |
| Prioritization | Risk score (incl. EPSS, exploit maturity, reachability) | Deterministic version matching, alerts only for high and critical (or KEV) with a match |
| Output | Findings in the platform, fix PRs, email, Slack, Jira tickets (manual) | Email with fix and workaround per repo, acknowledge via link |
| Evidence | Reports in the platform | Audit log of every alert and response, CSV export |
| Price | Free plan with limits, Team from 25 US dollars per month, Enterprise via credits | By plan, the core in every plan, see pricing |
| Data | EU region only with Enterprise | Hosted in Germany |
As of 24 October 2026. Stackwatch details refer to the beta.
Who Snyk fits better
If you want one platform for the whole development process, meaning code analysis, containers and IaC in one place, and you have someone who regularly triages and prioritizes findings, Snyk offers far more scope.
Who Stackwatch fits better
If you are 10 to 100 developers, have no security team and mainly want one thing: to know in time when a critical vulnerability hits your stack, and then know exactly what to do. It also makes sense alongside Snyk if your runtimes are not covered by container scans. We compare more tools in the overview Dependabot alternatives in 2026.
Sources
Frequently asked questions
What is the difference between Snyk and Stackwatch?
Snyk is an AppSec platform for your own code, open source packages, container images and infrastructure as code. Stackwatch is narrower and answers whether a new vulnerability hits your stack and what you do now.
Does Snyk detect the PHP runtime?
According to Snyk (blog, 22 October 2026), not when PHP is compiled from source, including in the official php: images. Snyk reports PHP from distribution packages once the distribution has published its advisory.
Which runtimes does Snyk Container detect?
Node.js and OpenJDK are documented, if they are installed without a package manager. Snyk also detects the base image and recommends upgrades. For that, the image has to be scanned, meaning built and handed to Snyk.
How does Snyk prioritize findings?
With a risk score from 0 to 1000 (early access, for open source and container). It draws on EPSS, exploit maturity and, for Java and JavaScript, the reachability of vulnerable functions, among other things.
Where is the data stored with Snyk?
The EU region (Frankfurt) is available only in the Enterprise plan. According to the documentation, Snyk stores some data types globally, such as billing, logs, support and authentication.
When is Snyk the better choice?
If you want one platform for the whole development process, meaning code analysis, containers and IaC in one place, and someone reviews and prioritizes findings regularly.