Panshi

Find bugs in your code before they ship

Paste a function that misbehaves and let the reviewer pinpoint the likely cause — null handling, race conditions, wrong boundaries — with a fix.

Staring at your own code makes bugs invisible — you read what you meant, not what you wrote. A fresh, systematic pass catches the mismatch between intent and implementation.

The Code Review tool scans for the classic failure modes: unhandled errors, mutated shared state, incorrect comparisons, missing awaits, and inputs you forgot to validate. Each finding comes with the reasoning and a suggested patch.

It is faster than adding print statements everywhere and a good companion to your test suite when something fails for reasons you cannot trace.

The tool for this

🔬Code Review

Paste a diff or file and get a ranked review — bugs, logic, security, performance — with fixes.

Try Code Review →

Frequently asked questions

How do I find a bug I cannot see? +

Paste the failing function plus how it misbehaves. The tool checks the common failure modes and points to the most likely cause with a fix.

Does it run my code? +

No. It reasons about the code statically, so you can use it on snippets without setting up an environment.

Will it suggest a fix or just the problem? +

Both. Each finding includes why it is a problem and a concrete suggested change.

Related tools

Browse the full tools directory, or see all Panshi services.