Explain code with AI
Paste a snippet or select code on any page and get a clear, line-by-line explanation in plain language. Understand unfamiliar code, libraries and stack traces without leaving the page.
How to do it
- Open the side panel and choose Code on the home screen.
- Pick the Explain task and a language (or Auto).
- Paste your code or select it on the page and right-click → Explain this code.
- Ask follow-ups or switch models to compare.
Example prompt
Explain what this function does, then walk through it line by line. Point out anything surprising.
Tips for better results
- Include the exact error message and what you expected.
- Mention versions (Node 22, Python 3.13, React 19).
- Ask for the reasoning first, then the code.
- For important code, ask a second model to review the first answer.
See it in the extension

Frequently asked questions
Which model is best for explain code?
Claude Opus 5.5 and GPT-6.1 Sol are the strongest for hard cases; Claude Sonnet 5.5 and GPT-6.1 Terra are faster for everyday use.
Does it support my language?
Yes — pick from JavaScript, TypeScript, Python, Java, C#, C++, Go, Rust, PHP, Ruby, Swift, Kotlin, Dart, SQL, HTML/CSS, React, Vue, Node.js, Bash or Auto.
Is my code stored?
No. Code you send is processed to create the answer and not stored on our servers. Don't paste secrets like API keys.
Every top AI model, one side panel
Try GPT-6.1, Claude, Muse and Grok free — 3 requests, no card needed.