🧪 AI Unit Test Generator

Automatically generate comprehensive unit tests from your code. Supports JavaScript, Python, Java, and Go.

✨ Function Signature Analysis 📊 Coverage Estimation 🎯 Boundary Detection ⚡ 100% Client-Side

📝 Source Code

🧪 Generated Tests

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Enter your code and click "Generate Tests" to create unit tests automatically.

📊 Coverage Analysis

Jest
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Generate tests to see coverage analysis

🎯 Boundary Conditions & Suggestions

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Generate tests to see boundary condition suggestions

How It Works

1. Paste Your Code

Enter your source code or choose from preset examples. The tool supports JavaScript, Python, Java, and Go functions, classes, and methods.

2. Select Framework

Choose your preferred testing framework. Options include Jest, Mocha, Pytest, JUnit, and Go Test depending on your language selection.

3. Generate Tests

Our rule engine analyzes function signatures, parameter types, return values, and code patterns to generate comprehensive test suites with edge cases.

4. Review & Export

Review generated tests, check coverage estimates and boundary condition suggestions. Copy to clipboard or download as a test file.

🔒 Privacy First

All analysis runs 100% in your browser. No code is sent to any server. Your source code never leaves your machine.

🎯 Smart Analysis

The engine detects parameter types, default values, error handling patterns, async operations, and common coding patterns to generate relevant tests.