OWASP ZAP

Free, open-source web app security scanner stewarded by Checkmarx.

softwareSecurity Auditingdastpenetration-testingopen-source

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Alternatives

DetectifyAI-suggested

Choose Detectify if…

you need ongoing discovery of new subdomains and APIs
you rely on crowdsourced ethical‑hacker research for
you want AI‑driven dynamic fuzzing for REST and GraphQL APIs
you prefer a single platform that combines surface

See details

IntruderAI-suggested

Choose Intruder if…

you need daily automated scans of AWS, Azure, or GCP assets
you want built‑in compliance reports for SOC 2 or ISO 27001
you require attack‑surface discovery beyond web‑app
you prefer a single platform that combines CSPM and

See details

Burp SuiteAI-suggested

Choose Burp Suite if…

you need AI‑assisted payload generation
you require scheduled CI/CD scanning without custom scripts
you want commercial support and regular updates
you rely on a large BApp extension marketplace for advanced

See details

Greenbone (OpenVAS)AI-suggested

Choose Greenbone (OpenVAS) if…

you need to scan non‑web infrastructure like servers and
you require a continuously updated feed of 100k+
you must keep scans on‑premise for compliance or
you want a freemium model that scales from a free

See details

How to Decide

OWASP ZAP is a free, open‑source web‑application security scanner widely used by security testers and developers. The alternatives split into a few clear camps: Detectify leans on continuous external vulnerability and API scanning powered by crowdsourced ethical‑hacker research; Burp Suite offers a freemium toolkit that adds a paid professional license for automated crawling, AI‑assisted scanning, and extensive extension support.

When choosing a replacement, consider the pricing model (completely free open source vs contact‑based enterprise pricing vs freemium with paid professional tiers), the deployment platform (desktop application versus cloud/SaaS), the level of automation and AI assistance available for scans, and how deeply each tool integrates with CI/CD pipelines for continuous testing.

All Alternatives

Detectify

AI-suggested

Detectify is an application security platform that performs dynamic vulnerability scanning across external attack surfaces, testing domains, IPs, APIs, and applications with payload-based techniques rather than relying solely on static signature matching.

✦ Best for appsec teams that want fast-moving vulnerability coverage backed by real ethical hacker research, not just static scans.

Contact for PricingProprietaryWebSurface MonitoringAPI FuzzingDAST Scanning

“Detectify offers automated DAST scanning of web apps, targeting the same vulnerability surface as ZAP.”

Intruder

AI-suggested

Intruder is a cloud-based exposure management platform that helps organizations identify and remediate security vulnerabilities before attackers can exploit them.

✦ Best for security teams that want continuous, automated vulnerability and cloud misconfiguration scanning in one dashboard.

Contact for PricingProprietaryWebAI PentestingAttack Surface ManagementCSPM

“Intruder provides cloud‑based continuous exposure management, a SaaS DAST alternative to ZAP.”

Burp Suite

AI-suggested

Burp Suite is PortSwigger's web application security testing platform, used by penetration testers and security teams to intercept, inspect, and manipulate HTTP traffic while probing for vulnerabilities like SQL injection and XSS.

✦ Best for security professionals who need a proven manual and automated web app testing toolkit.

FreemiumProprietaryWindowsMacLinuxIntercepting ProxyAutomated ScannerRepeater and Intruder

“Burp Suite is a full‑featured web‑app penetration testing suite, the commercial counterpart to ZAP.”

Greenbone (OpenVAS)

AI-suggested

Greenbone develops the OpenVAS vulnerability scanning engine, one of the most widely deployed open-source vulnerability management systems, used to discover assets and identify security weaknesses across desktops, servers, network devices, and IoT/industrial equipment before attackers can exploit them.

✦ Best for teams wanting a free, open-source vulnerability scanner with an option to scale to an enterprise appliance.

FreemiumProprietaryWebLinuxVulnerability ScanningAsset DiscoverySeverity Scoring