Zed Attack Proxy (ZAP) is described as 'The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications' and is a penetration testing tool in the network & admin category. There are more than 25 alternatives to Zed Attack Proxy (ZAP) for a variety of platforms, including Windows, Linux, Mac, Web-based and iPhone apps. The best Zed Attack Proxy (ZAP) alternative is mitmproxy, which is both free and Open Source. Other great apps like Zed Attack Proxy (ZAP) are Fiddler, HTTP Toolkit, Burp Suite and Charles.