Paste any code snippet and get a clear, plain-English explanation powered by AI — understand what it does, how it works, and the key concepts behind it in seconds.
What is the Code Explainer?
The Code Explainer takes any snippet of code and turns it into a plain-English explanation using AI. It supports Python, JavaScript, TypeScript, Java, C#, C++, PHP, SQL, Go, Rust, and Bash. Choose between an overall summary that covers what the code does and the key concepts it uses, or a line-by-line breakdown that walks through each line or logical block individually. You can also ask it to suggest improvements, which appends a dedicated section covering readability, performance, or best-practice fixes. It's built for students learning a new language, developers reviewing unfamiliar code, and anyone who wants to quickly understand what a piece of code is actually doing without digging through documentation. The tool is completely free, requires no login, and your code is never stored or logged on our servers.
How to Use the Code Explainer
- Paste or type your code into the editor on the left.
- Select the programming language from the dropdown so the explanation is accurate.
- Choose a mode — Explain Overall for a summary, or Line by Line for a detailed breakdown.
- Optionally toggle Suggest Improvements to get recommended fixes and best practices.
- Click Explain Code and read the AI-generated explanation on the right, or copy it with one click.
