Postman to OpenAPI Converter

Convert your Postman Collection (JSON format) into a clean, ready‑to‑use OpenAPI YAML file — directly inside Visual Studio Code.

This extension provides a simple and reliable workflow for teams who want to migrate from Postman collections to standardized OpenAPI specifications without using external tools or online converters.

✨ Features

• Convert Postman Collection JSON → OpenAPI YAML
• Works with large collections
• Runs locally (no data sent to external services)
• Simple command palette integration
• Saves the generated .yml or .yaml file anywhere you choose

🚀 How to Use

1. python is required. Check if you have pyYAML library, if not run: pip install pyYAML

2. Open the Command Palette
   Ctrl + Shift + P

3. Run the command:
   Postman: Convert to OpenAPI

4. Select your Postman collection (.json)

5. Choose where to save the generated OpenAPI file (.yml or .yaml)

That’s it — your OpenAPI spec is ready.

📦 Requirements

• Python installed on your system
• A valid Postman Collection JSON file

The extension automatically runs the included Python converter script.

🛠️ Extension Settings

No additional configuration is required.

🧩 Known Issues

• Extremely large Postman collections may take longer to convert.
• Ensure your Postman JSON is exported using “Collection v2.1” format for best results.

📄 License

Georgia Tech License

👤 Author

Developed by Taoufik Laaroussi
Publisher: MRLT

🙌 Contributions

Pull requests and feature suggestions are welcome.