Security tool

Code Audit Tool

Run a fast first-pass scan for common security, secret-exposure, and performance signals in your code.

The Code Audit Tool is a free, lightweight first-pass scanner for common risk signals in a code snippet — dangerous eval() calls, innerHTML XSS exposure, hardcoded secrets or credentials, and O(N^2) nested loops in JavaScript or Python. It's built for developers and engineering leads who want a quick sanity check before scheduling a deeper review.

Select your language, paste the snippet, and get an instant score with a short explanation for each flagged issue. This is a starting point, not a substitute for a full security or code-quality audit.

How this is calculated

The scanner starts with a baseline score of 95/100 and subtracts points for detected patterns: -25 for eval() usage, -15 for innerHTML, -20 for hardcoded secrets or credential-like strings, and -10 for nested loops in JS/Python. The final score is labeled "Clean" if 80 or above and "Issues Logged" if below 80. The scan is performed client-side; no code is sent to a server.

Frequently asked questions

What does this code audit tool check?+

It scans for four common risk signals: dangerous eval() usage, innerHTML-based XSS exposure, hardcoded secrets or credentials, and O(N^2) nested loop patterns in JavaScript or Python code.

Is this a replacement for a full security audit?+

No. It is a lightweight first-pass scanner that flags common code hygiene issues. A full security audit includes dependency scanning, runtime analysis, authentication review, and business-logic testing that this tool does not cover.

Which programming languages are supported?+

The scanner accepts JavaScript / React / Node, Python / FastAPI, and SQL snippets. The loop-complexity check is currently limited to JavaScript and Python.

What should I do if the tool finds issues?+

Treat each flagged issue as a starting point for a deeper review. Critical or high-severity findings should be validated by a senior engineer before production, especially in code that handles user input or authentication.

What to do with your result

A low score or critical finding is a sign to schedule a deeper code health review, especially if the snippet touches authentication, payments, or user-generated content.

Webvoid Technologies (based in Chittoor, India, working with teams globally) runs code audits, modernization, and security reviews. Get a free code health review with an engineer.

Related tools

Embed this calculator

Free to embed on your own site or blog post. Copy the snippet — it links back to Webvoid Technologies.

<iframe src="https://webvoidtechnologies.com/tools/code-audit-tool?embed=1" width="100%" height="820" style="border:0;border-radius:12px;" loading="lazy" title="Code Audit Tool"></iframe>
Get a free code health review