// AI PATCH GENERATOR · BEHAVIOR-PRESERVING SECURE REFACTOR PRO
Minimal, behavior-preserving secure refactors with before/after diffs.
Paste vulnerable code. The generator finds the security issues, fixes them with the smallest safe change, and shows you a before/after diff — SQL injection, XSS, command injection, weak crypto, hardcoded secrets and more, each mapped to a CWE. The patch is shown for review; nothing is executed.
Recent patches
| When | Language | Issues | Top severity | Lines Δ | Engine |
|---|---|---|---|---|---|
| Jul 1, 04:10 | sql | 0 | info | +3/−4 | AI |
| Jul 1, 04:08 | php | 0 | info | +31/−6 | AI |
Metadata only — your source code is never stored.
How the patch generator works
It runs in two stages. First a static detector scans your code line by line for well-known vulnerability classes — SQL injection, XSS, command injection, insecure deserialization, weak cryptography, hardcoded secrets, insecure randomness, path traversal, SSRF, non-constant-time comparison, and dynamic evaluation — and maps each to a CWE. Then it generates a fix: a set of conservative, high-confidence deterministic rewrites that work offline, or a full AI refactor for context-dependent issues. Either way, the before/after diff is computed locally in the platform, so what you see is exactly what changed.
Minimal and behavior-preserving
The generator aims for the smallest safe change: it fixes the vulnerability and leaves the rest of your code — logic, names, comments, formatting — alone. Review the diff, run your tests, then apply. It is a remediation aid, not a substitute for review: a clean result is not a guarantee of security.
Frequently asked questions
What does "behavior-preserving" mean?
The generator changes only what is needed to fix a security issue — it keeps your functionality, structure, names, comments, and formatting otherwise. The goal is the smallest safe diff, not a rewrite.
Is the patched code executed?
No. The output is text that is displayed and diffed for you to review and apply. Nothing is run, and the before/after diff is computed locally, not taken from the AI.
What issues can it fix?
Common, high-confidence classes: SQL injection, XSS, command injection, insecure deserialization, weak cryptography, hardcoded secrets, insecure randomness, path traversal, SSRF, non-constant-time secret comparison, and dynamic evaluation — each mapped to a CWE.
Do you store my code?
No. Your code is analyzed for your session and discarded. Only metadata is recorded — language, number of findings, top severity, CWEs, and lines changed — never the code itself.
Will the AI ever weaken or backdoor my code?
No. It is bound to only make security-improving changes and refuses to alter behavior unrelated to security. If the submitted code appears to be malware or an exploit, it refuses to "improve" it.