For Stack Overflow Developers
The answer works. That doesn't mean it's safe.
We scan, then we forget. You keep what you want.
Stack Overflow solved your bug in thirty seconds, and the accepted answer compiles and runs. But an answer written in 2013 to demonstrate a concept was never meant to be hardened for production. AllScanTool scans the code you copy and adapt for SQL injection, XSS, hardcoded credentials, and insecure functions, right in your browser, before it ships. No logs. No storage. No retention. Your code stays private.
A working answer is not a production answer
The highest-voted snippet gets the job done, but the votes measure whether it solves the question, not whether it is safe to ship. These are the risks AllScanTool catches before the copy-paste reaches production.
Accepted answers optimized for clarity, not safety
To explain a concept simply, answers skip validation and escaping, and that demo-grade code goes straight into real projects.
Old answers using outdated, unsafe APIs
A top answer from years ago may use functions and patterns that are now known to be insecure, long after the language moved on.
Query examples built with string concatenation
Database answers often concatenate input straight into the query to keep the example short, which is textbook SQL injection.
DOM snippets that write unescaped input
JavaScript answers drop user input into innerHTML to demonstrate the idea, leaving an XSS hole when you reuse them as-is.
Placeholder keys you forgot to remove
Answers ship with sample tokens and credentials inline, and the hardcoded placeholder quietly survives into your committed code.
Copy, adapt, ship — with no review in between
The whole point is speed, so the snippet goes from answer to codebase without anyone checking it for security first.
Ask AST
Questions developers bring to the Delivery-Layer Engine after copying an answer from Stack Overflow.
QI copied the accepted answer for a database query — does it have any SQL injection risk before I use it in production?
Paste it into the scanner. AST flags queries built from concatenated input and points you to parameterized statements, so the example becomes production-safe before it ships.
QThis JavaScript answer writes user input to the page — does it open an XSS vulnerability the way it is written?
Scan the snippet and AST detects unescaped input written to the DOM, so you can sanitize or swap the approach before the code goes live.
QThe top answer is from several years ago — is it using any functions that are now considered insecure?
Run it through AST and it surfaces deprecated and insecure functions, so an old high-voted answer does not carry outdated risk into a current project.
QI adapted an answer that had example API keys in it — did I leave any credentials hardcoded in my version?
Scan your file and AST detects hardcoded credentials and stray secrets, so a placeholder from the answer never ends up committed in your code.