XSS Analyzer

Analyze HTML, JavaScript, and URLs for Cross-Site Scripting vulnerabilities with detailed security reports

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100%

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4.9 / 5.0

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About This Tool

The XSS Analyzer is a comprehensive security tool that helps developers and security professionals detect Cross-Site Scripting vulnerabilities in web content. Upload HTML files, paste JavaScript code, or enter URLs to analyze for potential XSS attack vectors. The tool performs multiple detection methods including pattern matching, DOM analysis, and context-aware scanning to identify reflected, stored, and DOM-based XSS vulnerabilities. Results include detailed vulnerability descriptions, severity ratings, and recommended fixes to help secure your web applications.

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How to Use

Choose input method: paste HTML/JavaScript code, upload a file, or enter a URL
Click 'Analyze for XSS' to start security scanning
Review the detailed vulnerability report with severity ratings
Implement recommended fixes to secure your web application
Use the 'Clear' button to reset and analyze new content

Frequently Asked Questions

Find Quick Answers

What types of XSS vulnerabilities does this tool detect?

The analyzer detects reflected XSS, stored XSS, and DOM-based XSS vulnerabilities by examining script tags, event handlers, JavaScript functions, and URL parameters across multiple contexts.

Is my data secure when using this tool?

All analysis is performed securely without storing your sensitive data. Uploaded files and entered content are processed in memory only and not persisted to disk.

Can I analyze entire websites with this tool?

You can analyze individual URLs or page content. For comprehensive website scanning, you would need to analyze each page separately or use specialized website security scanners.

What should I do if vulnerabilities are found?

Implement the recommended fixes provided in the report, such as proper input validation, output encoding, using Content Security Policy headers, and following secure coding practices.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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