SeeScan — Instant Code Vulnerability Scanner

SeeScan is a single-file, browser-based security scanner that finds real vulnerabilities in your JavaScript and Python code instantly — just open the file and paste your code in.

No installation. No server setup. No account required. Works completely offline in your browser.

What it detects:

Hardcoded secrets & API keys

SQL injection (string-built queries)

Code injection (eval/exec)

Command injection (os.system, subprocess)

XSS vulnerabilities (innerHTML, document.write, dangerouslySetInnerHTML)

Insecure deserialization (pickle, unsafe yaml.load)

Insecure configuration (debug mode left on, disabled SSL verification, wildcard CORS, weak password hashing)

Each finding shows the exact line, the severity (critical/high/medium), and a clear recommendation for how to fix it.

Who it's for:

Solo developers, freelancers, and small teams who want a fast sanity-check on their code before shipping — without setting up a full security pipeline.

What you get:

One HTML file

Works in any modern desktop or mobile browser (Chrome, Firefox, Edge, Safari). Some older or heavily customized mobile browsers (e.g. Vivo's built-in browser) may not fully support the JavaScript used — Chrome is recommended on mobile.