Paste any code snippet and instantly find out if it was written by ChatGPT, Copilot, or another AI.
According to some reports online, AI-generated code already makes up about 25–30% of code submissions at Fortune 500 companies, and that share is expected to grow. Moreover, some companies already generate 100% of code using AI.
It’s becoming increasingly important to distinguish human-written code from AI-generated code for security, accountability, and transparency.
That’s why, at Overchat AI, we've built this free AI code detector. It’s powered by a fine-tuned language model, achieves 99.2% detection accuracy, and supports 20+ programming languages.
If you’re unsure whether a piece of code was written by a human or generated by AI, paste it into the tool and let it analyze it.
Our ChatGPT AI code detector was trained on millions of code samples to distinguish human-written code from AI-generated code.
To get started, just paste your code into the input field, selecte the language, and click analyze.
This tool supports Python, JavaScript, Java, C++, Go, Rust, TypeScript, and more. See the full list below.
Python
JavaScript
TypeScript
Java
C++
C#
Go
Rust
Ruby
PHP
Swift
SQL
HTML
CSS
Shell/Bash
USE CASES
Run submissions through our AI code checker to verify the work wasn't just copy-pasted from ChatGPT.
Check student programming assignments and ensure submissions reflect genuine learning and effort.
Screen take-home assignments and verify the code was authored by the applicant, not an AI.
Maintain quality in your open-source project by screening pull requests and identify AI-generated contributions.
Our Python code AI detector is fine-tuned for Python's unique style patterns, making.
Spot-check code across the team to understand how much AI assistance is being used.
Join thousands of developers, educators, and teams already using Overchat AI.
Overchat AI brings you the power of the world's top AI models: ChatGPT, Claude, Gemini, Mistral, and more.
It's a tool that analyzes whether a piece of code was written by a human or generated by AI. As more code online is produced by chatbots—especially with the rise of vibe coding and the growing adoption of AI coding tools like Replit—it’s becoming increasingly important to understand what was AI-generated versus human-written. This matters for accountability and human oversight, since AI-generated code can introduce unexpected behavior or security vulnerabilities.
It works similarly to a text AI detector. Just paste your code snippet into the input field above and click Analyze. The tool will scan the code and return a breakdown along with an AI score. It’s free to use and doesn’t require an account.
Yes — accountability is critical for responsible AI development, and we want to support that. That’s why the tool is free to use and will remain so for as long as we can support it. Usage is currently unlimited, though we may introduce limits in the future depending on submission volume.
Chinese company Baidu has quietly released a model that's just as good as DeepSeek and ChatGPT — ERNIE 4.5 delivers exceptional performance at a fraction of the cost — and most people outside China have never even heard of it.
If you're wondering: what is DeepSeek AI, the answer is quite simple. DeepSeek AI is a Chinese AI research lab that builds large language models. The company released several models in late 2024 and early 2025 that compete directly with OpenAI's GPT-4 and Anthropic's Claude, but at a fraction of the operating cost.
ChatGPT Plus costs $20 per month plus tax, while the Pro plan costs $200 per month plus tax. Understandably, not everyone is willing to pay that much for a chatbot, especially if the premium features aren’t worth it to them. This raises an obvious question: how can I use ChatGPT for free?
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