Security Vulnerability Scan
Paste source code to detect XSS, SQL injection, hardcoded secrets, eval() calls, and more.
Why Use DiffMergy’s Security Vulnerability Scanner?
DiffMergy’s Security Scan helps developers identify and fix vulnerabilities before they reach production. It scans source code for XSS, SQL injection, hardcoded credentials, unsafe eval usage, and dozens of other OWASP Top 10 security risks across 30+ programming languages.
Every scan runs entirely in your browser, so sensitive codebases never leave your machine. The tool provides clear, actionable results with line-level references for quick triage and fixes.
100% Private — No Server Upload
All processing happens entirely in your browser using Web Workers and modern browser APIs. Your sensitive source code, credentials, and files never leave your device — no servers, no databases, no tracking, no sign-up required.
Fast & Reliable
Built with vanilla TypeScript and a lightweight custom engine, DiffMergy delivers sub-millisecond processing with zero network latency. The entire toolkit works on any modern browser across all operating systems, with no installation or setup needed.