The code explanation will be displayed here.
Three simple steps
How to use this tool?
This free online code explainer turns source code into a clear explanation in the programming language of your choice.
- Step 1
Choose a language
Select the programming language whose code you want to understand.
- Step 2
Add your code
Type, paste, or upload your source code in the input editor.
- Step 3
Generate an explanation
Click Explain to generate a clear walkthrough of how the code works.
Common questions
Frequently Asked Questions
How does CodeConvert AI's code explainer work?
CodeConvert AI's code explainer uses advanced large language models to analyze your code and produce a clear, step-by-step explanation of what it does. Simply paste your code, select the programming language, and click Explain. You'll get a detailed breakdown of the code's logic, structure, and purpose in seconds.
What programming languages are supported?
Our code explainer supports over 50 programming languages including Python, JavaScript, TypeScript, Java, C++, C#, Go, Rust, Ruby, PHP, Swift, Kotlin, R, Lua, and many more.
Is the code explainer free to use?
Yes. You can use the free code explainer without creating an account for up to 2 explanations per day. For more explanations and higher limits, sign in for free — every account gets 5 free credits with support for up to 25,000 characters of input code per explanation.
How detailed are the code explanations?
The AI provides thorough explanations that cover the overall purpose of the code, how each section works, key variables and data structures, and the flow of logic. It adapts the level of detail to the complexity of the code you provide.
Do I need to sign up to use the code explainer?
No. You can use the free code explainer without signing up or creating an account for up to 2 explanations per day. Just paste your code, select the language, and click Explain. Sign in for free to get 5 free credits with higher limits.
Can I explain entire programs or just code snippets?
You can explain both. The tool handles everything from short code snippets and individual functions to complete programs with multiple classes, modules, and complex logic.
Can I also generate code with CodeConvert AI?
Yes! In addition to explaining code, CodeConvert AI offers a free Code Generator that supports 50+ languages. Just describe what you need in plain English, select a language, and get working code in seconds. Try the Code Generator
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro tool, which includes more powerful AI models, an integrated chat assistant, code execution, personal notes, conversion history, and an enhanced interface. Every account gets 5 free credits with support for up to 25,000 characters of input code per explanation — no credit card required.
Explore by language
Try our Code Explainers in other languages
More free tools