Explain This Error
Paste an error or stack trace — get what it means, why it happened, and how to fix it. Free, no signup.
Frequently Asked Questions
What does this tool do?
Paste a raw error message or stack trace and an AI reads it the way an experienced developer would — telling you in plain English what the error means, the most likely cause based on the frames in the trace, and concrete steps to fix it.
Is it really free?
Yes — no signup, no credit card. There's a fair-use rate limit so the tool stays available for everyone.
Which languages work?
Any language whose errors you can paste as text — Python, JavaScript/TypeScript, Node.js, C#/.NET and Unity, Java, Go, Ruby, PHP, Rust and more. The AI detects the runtime from the trace.
Is my error data stored?
The text you paste is sent to the AI to generate the explanation and cached briefly so identical pastes return instantly. Don't paste secrets or personal data — strip tokens and credentials from a trace first.
How is this different from tracking errors with Bugsly?
This tool explains one error you already found and copied. Bugsly catches every error in your app automatically — with the same AI explanation attached, plus who hit it, on which device and release, and how often.
Tired of debugging in production?
Bugsly catches errors before your users do — with AI-powered explanations and instant fixes.
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