Snyk
Snyk is a developer-security platform (with a free tier) that finds vulnerabilities in dependencies, code, containers and IaC.
Legal & ethical use. Use this tool only on systems, networks and data that you own or have explicit written permission to test. Unauthorised access or scanning can break computer-misuse laws (for example Pakistan's Prevention of Electronic Crimes Act, 2016, and equivalents elsewhere). Practise in your own lab or in authorised environments such as CTFs.
What it is used for
- Check a project's dependencies for known vulnerabilities
- Get fix suggestions as pull requests
Key features
- Open-source dependency scanning
- Code and container scanning
- IDE and CI integrations
Installation
Install the CLI (`npm install -g snyk`) and authenticate with an account; see the docs for current plans.
Beginner usage guide
Run a test in a project folder and apply the suggested upgrade for vulnerable packages.
Example commands
Run these only against your own lab or authorised targets. Placeholder addresses such as 192.0.2.x are documentation ranges.
Test a project's dependencies
snyk testRequires `snyk auth` first.
References
Source verification
Last reviewed: 2026-10-27
Links checked over HTTP: 2026-10-27 07:51 UTC — official: 200, docs: 200, repo: 200
Commands were written from the official documentation and have not been executed on this site; test them in your lab.