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 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.
Frequently Asked Questions
What vulnerabilities does the Security Scan detect?
It scans pasted source code for OWASP Top 10 risks including XSS, SQL injection, hardcoded credentials, unsafe eval, insecure cryptography, path traversal, and command injection across 30+ languages.
Is my code uploaded when I run a security scan?
No. All scanning happens locally in your browser. Your source code never leaves your device and is never transmitted to any server.