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Pick up to 4 security testing and we'll lay out their specifications side by side. Apples to apples only — once you pick the first item, the picker locks to its category so you don't end up comparing Selenium with OWASP Top 10.
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OWASP ZAP
OWASP
Open Source
Free Tier
Self-Hosted
Free, open-source web app security scanner.
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Specification comparison
Schema: Tools. Missing values are marked "Not available yet" — those are next on our research list.
Rating key:
Positive / Free / Fast
Limited / Moderate
Difficult / Steep
Informational
| Attribute | |
|---|---|
| Pricing | Free |
| Free tier / OSS |
100%
open source
|
| License |
Apache
2.0
|
| Testing type | Security / DAST |
| Languages / SDKs | Python, Groovy (ZAP scripting API) |
| Supported platforms | Windows, macOS, Linux, Docker |
| Parallel testing |
Yes
— headless/daemon mode
|
| Speed | Moderate |
| Key integrations | Jenkins, GitHub Actions, Azure DevOps, Selenium |
| Learning curve | Moderate |
| Community / Support |
Very
large — OWASP global community
|
| Maintained by | OWASP / Software Security Project |
| First released | 2010 |
| Latest version | See website |
| Best suited for | Free DAST scanning in CI/CD pipelines |
| Official site | www.zaproxy.org ↗ |
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