Code Explainer (AI)
Paste code and get a clear, step-by-step walkthrough of what it does.
🔒 Bring-your-own-key — your key is sent only with this request and never stored. Get a key from Anthropic or OpenAI.
About this tool
Paste a function or snippet and the AI walks through it step by step, summarises its purpose and flags issues. Bring your own key.
Frequently asked questions
Will it flag bugs?
Yes — alongside the walkthrough it notes any bugs, edge cases or code smells it spots.
Do I need my own API key?
Yes. This tool is bring-your-own-key: paste your own Anthropic or OpenAI key and it is used only for that single request — never stored on our servers.
How much does it cost?
The tool is free; you only pay your AI provider for the tokens used, billed directly by Anthropic or OpenAI on your own account.