Postman to Playwright

⚙️ Work in Progress: This project is still under active development. Contributions, feedback, and ideas are highly encouraged!

A simple tool that automatically converts Postman collections into Playwright API tests. It extracts variables, headers, and request data - generating ready-to-run Playwright test files and environment variables for seamless API testing setup.

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🚀 Features

• 🔄 Convert Postman Collections directly into Playwright API tests.
• 🌍 Extract Environment Variables - automatically adds Postman variables into a .env file.
• 🧾 Preserve Headers & Payloads from your Postman requests.
• 🧠 Auto-generate Tests using Playwright’s built-in test runner and assertions.
• 🧰 Custom Helpers for assertions and API requests (planned).

Installation

You can try out at Postman to Playwright without any local installations. Might be slow since it is hosted on free-tier.

npm install

Usage

1. Run the following command to start the application:

npm start

2. Open http://localhost:3000 to view the page
3. Upload a Postman Collection JSON file
4. Click on Convert Collection
5. Wait for conversion and click on Download ZIP
6. Extract the ZIP and follow the instructions in the README file

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🧪 Example Output

Input: Postman request:

{
  "name": "Get All Products",
  "request": {
    "method": "GET",
    "header": [],
    "url": {
      "raw": "{{baseUrl}}/api/products/",
      "host": [
        "{{baseUrl}}"
      ],
      "path": [
        "api",
        "products",
        ""
      ]
    }
  },
  "response": []
}

Generated Playwright Test:

import { test, expect, request } from '@playwright/test';
import { post, get, put, del } from "@helpers/requestHelper";

test('Get All Products', async ({ request }) => {
  const headers = {};
  const data = {};

  const start = Date.now();
  const response = await post(request, `${baseUrl}/api/products/`, data, headers);
  const responseTime = Date.now() - start;
  expect(response.ok()).toBeTruthy();
  expect(responseTime).toBeLessThan(2000);

  // No Postman tests found
});

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🤝 Contributing

Contributions are welcome! Here’s how you can help:

1. Clone the repository
2. Create a new branch (feature/my-feature)
3. Commit your changes
4. Open a pull request 🎉

If you find a bug or want to suggest a feature, open an issue.

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🧭 Future Vision

This tool aims to make transitioning from Postman to Playwright frictionless — especially for QA engineers and developers building automated API testing pipelines.

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🧑‍💻 Author

Dhiraj Raut 💼 LinkedIn