Best penetration testing tools
Exploitation frameworks, intercepting proxies and web vulnerability scanners used by pentesters, red teams and bug bounty hunters.
4 apps, ordered by visits from AppBreakup and how often our research lists each one as an alternative. Open any app to see its alternatives.
All penetration testing tools
- Alternatives to Burp Suite
PortSwigger's web security testing toolkit, with a free Community Edition and a paid Professional edition.
Free plan + paidWindows, macOS, Linux - Alternatives to ZAP
Free, open-source web app security scanner and intercepting proxy, formerly OWASP ZAP.
Open sourceWindows, macOS, Linux - Alternatives to Caido
Lightweight web security testing proxy with a free tier, built as a modern alternative to Burp Suite.
Free plan + paidWindows, macOS, Linux - Alternatives to Tenable Nessus
Widely used vulnerability scanner that checks hosts and networks for known security flaws.
PaidSelf-hostableWindows, macOS, Linux, Web
Our picks by need
Best for most people
Burp SuiteBest for a free option
ZAPBest for open source
ZAPBest for self-hosting
Tenable NessusBest for Mac
CaidoBest for Windows
Burp SuiteBest for Linux
Burp SuiteCommon questions
What are the best penetration testing tools?
Based on how often our research lists them as alternatives and visits from AppBreakup, the leading penetration testing tools right now are Burp Suite, ZAP, Caido and Tenable Nessus.
Are there free penetration testing tools?
Yes. Burp Suite (free plan + paid), ZAP (open source) and Caido (free plan + paid) have a free option, out of 3 free or freemium apps we track.
Which penetration testing tools are open source?
ZAP.