Web Application Security Scanners
Alternatives to Nuclei
Nuclei is a free, open-source vulnerability scanner for applications, infrastructure, cloud platforms, and networks. Its YAML templates let security teams reuse community checks or define their own, with bulk and parallel scans, multiple target formats, filters, and authentication support. Modules cover HTTP, DNS, TCP, headless, JavaScript, code, and files. Nuclei also fits CI/CD workflows, exports SARIF to GitHub Code Scanning, connects to ProjectDiscovery Cloud Platform, and runs on Linux, macOS, Windows, or self-hosted systems.
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Burp Suite DAST Burp Suite DAST suits teams scanning modern web applications and APIs, especially those integrating scans into CI pipelines.
Free trial Web · Windows · Linux · API8.6 Visit Specs - 02
Beagle Security Beagle Security suits teams that need automated testing for web applications, APIs or GraphQL, including teams integrating security tests into CI/CD workflows.
From $99/mo Free plan Web · API8.5 Visit Specs - 03 OWASP ZAP
ZAP is designed for developers, testers who are new to security testing, and security testing specialists.
Free plan Open source Windows · macOS · Linux · API8.5 Visit Specs - 04
Astra Security Astra identifies engineering, security, and DevOps teams, plus compliance-dependent organizations, as intended users.
From $58.25/mo Free trial Web · API8.4 Visit Specs - 05
Blacklock From $85/mo Free trial Web · API · Browser extension8.2 Visit Specs - 06 AppCheck Free trial Web · API · Self-hosted8.1 Visit Specs
- 07 VAddy From ¥19,800/mo Free trial Web · macOS · Linux · API7.9 Visit Specs
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BlueClosure BC Detect From £60/mo7.8 Visit Specs - 09
ImmuniWeb ImmuniWeb suits organizations seeking security scanning, monitoring, or penetration testing for applications, APIs, and infrastructure.
From €49.58/mo Web · iOS · Android · API7.8 Visit Specs - 10 BreachLock DAST From $416.67/mo Web · API · Browser extension7.7 Visit Specs
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Haxore Web Security Scanner From $49/mo Web · Browser extension7.7 Visit Specs - 12
Invicti Invicti suits organizations managing application security across code, dependencies, infrastructure, APIs, secrets, and containers.
Web · API · Self-hosted7.6 Visit Specs - 13 ZeroThreat
ZeroThreat suits security, DevOps, and development teams testing web applications and APIs, including teams needing authenticated scans or CI/CD integrations.
From $100/mo Free plan Web · API7.6 Visit Specs - 14 ProxyMesh From $10/mo Web · API7.5 Visit Specs
- 15 Wapiti
Wapiti suits users auditing deployed websites, web applications, or REST APIs who can manage Python requirements and scan authorization.
Free plan Windows · macOS · Linux · API7.5 Visit Specs - 16
Escape Web · API7.3 Visit Specs - 17 HCL AppScan Source Windows · Linux · Self-hosted7.3 Visit Specs
- 18 Vega Windows · macOS · Linux7.1 Visit Specs
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XBOW Web · API6.6 Visit Specs - 20
Rapid7 InsightAppSec From $175/mo Web · Windows6.3 Visit Specs - 21
Tenable One Web App Scanning From $298.17/mo Web6.2 Visit Specs - 22 Detectify Application Scanning Web5.9 Visit Specs
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FortiDAST Web5.8 Visit Specs - 24 Pentest-Tools Website Scanner Web · macOS · Linux5.8 Visit Specs
- 25 Holm Security Web Application Security Web5.7 Visit Specs
- 26 OpenText Fortify DAST Web · Linux5.7 Visit Specs
- 27 PT BlackBox 5.3 Visit Specs
- 28 Qualys Web Application Scanning Web5.3 Visit Specs
Choosing instead of Nuclei
Readers may seek alternatives for continuous monitoring, daily-refreshing vulnerability tests, remediation and patch management, compliance workflows, asset discovery, or a web interface. Nuclei has a free plan and no paid tier, but its primarily standalone CLI lacks an LTS or stable version, and active development can introduce breaking changes. Some templates may fuzz or take actions that risk denial of service, although tagged templates are excluded from default scans. When switching, weigh deployment, reporting, prioritization, integrations, cloud coverage, and whether guided remediation matters more than customizable templates.