Explain Like I'm 5

Drop in any topic, term or paragraph — get a simple explanation.

Using —● no key

This tool runs on your own AI account. Click Settings above and paste an API key from Google Gemini, OpenAI (ChatGPT), or Anthropic (Claude). Your key is stored only in your browser — we never see it and you control all usage costs.

What should I explain?

About this tool

Explains any topic, concept or jargon in plain language a 5-year-old could grasp.

How to use

1Type the concept or paste a passage.
2Click Explain.
3Use the simple version to learn or share.