We track 3 open-source alternatives to Snyk, but none currently has confirmed commercial use, local running and no paid services together. None of the 3 projects we track covers all 3 Snyk jobs, so most people combine two or more.
Snyk does 3 jobs. Most projects replace one or two of them, so pick the job you actually need. Facts checked 26 Oct 2026.
$25/month
In their words: Free with 100 Snyk Code tests/month; Team from $25/month for up to 10 developers with 1,000 Code tests/month; Enterprise on prepaid credits, Snyk Code at 1 credit ($1) per active contributor per day. snyk.io, checked 11 days ago.
2 of 3 jobs. Find vulnerabilities in your own source code (SAST), Find vulnerable open-source dependencies (SCA).
Agent-run CodeQL/Semgrep static analysis, language-specific security reviews and a supply-chain auditor for npm, PyPI and Go; no IaC or container scanning, no continuous monitoring or dashboard.
Licence
CC-BY-SA-4.0
Commercial use
With conditions. Yes, with attribution, and adapted versions must stay CC-BY-SA
Hardware
No hardware needs of its own; runs wherever the host agent runs; some plugins call external tools such as CodeQL, Semgrep or apktool
Setup
Easy, one /plugin marketplace add command, then pick plugins from /plugin menu
1 of 3 jobs. Find vulnerabilities in your own source code (SAST).
On-demand audits of one repository with independently verified findings; no dependency, IaC or container scanning, CI gating or dashboard.
Licence
MIT
Commercial use
Yes. Yes, MIT allows commercial use
Hardware
No hardware needs of its own; Markdown skill files run wherever the host agent runs, plus Node.js for the validators and a sandbox for running target code
Setup
Easy; one npx skills add command (needs Node.js); a sandbox is needed to run target code
1 of 3 jobs. Find vulnerabilities in your own source code (SAST).
Claude-driven threat modelling, source scanning, triage and patch drafts; reference code you adapt yourself, unmaintained, with no dependency, IaC or container scanning.
Licence
Apache-2.0
Commercial use
Yes. Yes, Apache-2.0
Hardware
No GPU needed, Claude runs via the API; the skills have no hardware needs of their own; pipeline agent containers get a 4 GB Docker memory cap by default (memory_limit in the target config); no host CPU, RAM or disk minimum documented
Setup
Easy for the skills (clone, open in Claude Code, run /quickstart); medium for the pipeline, which needs Docker, a one-time gVisor sandbox setup and porting to your language
Nobody listed here does this job yet.
Listed by jobs covered, then stars. Tick up to three to compare. Unknown means we found no source, never a yes. Running it yourself costs your hardware, electricity and setup time.
Common questions
Is there a free, open-source alternative to Snyk?
Yes. Trail of Bits Skills and Cloudflare Security Audit Skill are free to download and run on your own computer without paid API keys. Each covers only part of what Snyk does, so check which job you need.
Can I do find vulnerabilities in your own source code (SAST) locally without a Snyk subscription?
Yes, with Trail of Bits Skills (CC-BY-SA-4.0), Defending Code Reference Harness (Apache-2.0) and Cloudflare Security Audit Skill (MIT). Check the hardware notes and licence conditions on each page before you start.
Can I do find vulnerable open-source dependencies (SCA) locally without a Snyk subscription?
Yes, with Trail of Bits Skills (CC-BY-SA-4.0). Check the hardware notes and licence conditions on each page before you start.
Which Snyk alternatives run on Windows, macOS or Linux?
macOS: Trail of Bits Skills. Linux: Defending Code Reference Harness and Trail of Bits Skills. The rest are web apps or servers, or their docs don't say which systems they support.
Which Snyk alternatives can I use commercially?
Confirmed: Defending Code Reference Harness and Cloudflare Security Audit Skill. With conditions: Trail of Bits Skills. This is not legal advice; read each licence.
Does any open-source project replace all of Snyk?
Not as of 2026-10-26. Find vulnerabilities in your own source code (SAST), find vulnerable open-source dependencies (SCA) and scan infrastructure-as-code and containers are covered by different projects.
Can we count visits and remember your filters? No advertising cookies, and sponsors never get your data. Cookie policy