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  1. Free Online Vulnerability Scanner

    Proactively secure your web apps and APIs for FREE with ZeroThreat’s online vulnerability scanner. Instantly detect OWASP Top 10 and CWE Top 25 in your web app.

  2. OWASP Online Scan - HostedScan Security

    Online web application vulnerability scan powered by OWASP ZAP. Scan websites for security vulnerabilities.

  3. Free Online Website Vulnerability Scanner

    We built this tool to make website security effortless. It performs real-time, non-intrusive scans to check your site for the most common vulnerabilities that hackers exploit. Type any website address, and hit …

  4. Top 11 Free Online Vulnerability Scanning Tools in 2026

    Dec 26, 2025 · Choose a free vulnerability scanner that details identified vulnerabilities, including their severity level, potential impact, and step-by-step remediation guidance.

  5. Free Website Security Scan | UpGuard

    UpGuard scans billions of digital assets daily across thousands of vectors. Data leak detection, vulnerability scanning and identity breach detection are just some of the advanced capabilities …

  6. Free Vulnerability Scanner | CVE Detection & Security Vulnerability

    Scan your website for known vulnerabilities, CVEs, and security misconfigurations. Free vulnerability scanner with risk severity scoring and remediation guidance.

  7. Website Scanner | Website Security Check for Free | Snyk

    Scan the code and infrastructure that support your website for security vulnerabilities. Vulnerability management is a critical requirement for anyone running web applications or interactive and static …

  8. Web Scanner - Vulnerability Scanner | URLScan Tool - ScyScan

    Free web scanner, vulnerability scanner and urlscan tool delivers OWASP-based vulnerability detection with detailed scan reports to keep your site secure.

  9. 28 Online Vulnerability Scanners & Network Tools

    Online Vulnerability Scanners to Identify Vulnerabilities and Map the Attack Surface. 28 Trusted Security Scanners and Free Network Tools.

  10. Highly Accurate Website Scanner | Try a Free Vulnerability Scan

    Our custom-built Website Vulnerability Scanner detects SQLi, XSS, command injection, XXE, and 75+ more web app vulnerabilities in record time, using proprietary test payloads to prove their exploitability.