OWASP ZAP (Zed Attack Proxy) is an open-source security scanner for web applications. It supports automated scanning as well as manual testing. The listing describes it as one of the most widely used tools of its kind. Developers and security teams use it to find vulnerabilities during development and testing. The project is available at zaproxy.org.
How OWASP ZAP compares with its closest alternatives
All 5 closest alternatives have a free plan, as OWASP ZAP does. Only Burp Suite lists a starting price, $449 a month. All 5 offer an API, as OWASP ZAP does. OWASP ZAP offers a desktop app. Of the alternatives, 4 offer a desktop app. OWASP ZAP was founded in 2010; the alternatives were founded between 2003 and 2022, 1 of them earlier. OWASP ZAP has no single headquarters on record, and 1 of its alternatives is also distributed.
Market position · Security
How OWASP ZAP compares in Security
OWASP ZAP has low opportunity and sits in the bottom third of 361 live Security tools on FalcoScan. Across Security, the average opportunity score is 70.4 and the average saturation score 33. FalcoScan rates OWASP ZAP's own market position as contested. 121 of the 361 operating Security tools have hot momentum, and FalcoScan has recorded 1 shutdown in the category.
The closest alternatives to OWASP ZAP that are still running, matched on the AI capabilities, uses and audience they share, are Burp Suite, Bearer, Mend, Trivy, and Grype.
Is OWASP ZAP still running?
Yes. As of 2 November 2026, FalcoScan lists OWASP ZAP as operating at zaproxy.org.
Where is OWASP ZAP based?
OWASP ZAP has no single headquarters: FalcoScan's records list it as a distributed, remote-first company.
Does OWASP ZAP have an API?
Yes. OWASP ZAP offers an API.
Who is OWASP ZAP for?
OWASP ZAP is built for developers and security teams.
How do I sign in to OWASP ZAP?
Sign in on OWASP ZAP's own website, zaproxy.org. FalcoScan reviews OWASP ZAP but does not run its accounts, so logins, passwords and billing are handled by OWASP ZAP directly.