API Testing Web App

A lightweight, browser-based API testing tool similar to Postman that allows you to test and manage HTTP/HTTPS requests. This tool runs entirely in the browser with no backend dependencies.

![API Testing Web App]

URL - https://arvind-git-code.github.io/API_testing_utility/

Features

1. HTTP Request Support

• Supports all common HTTP methods:
  • GET
  • POST
  • PUT
  • PATCH
  • DELETE

2. Request Configuration

• URL Input: Enter any HTTP/HTTPS endpoint
• Headers Management: Add custom headers in JSON format
• Request Body: Two formats supported:
  • JSON data
  • Form Data (including file uploads)

3. Response Visualization

• Status code display
• Response headers viewing
• Formatted response body display (JSON/Text)
• Auto-formatting of JSON responses

4. Test Case Management

• Save test cases with custom names
• Load saved test cases
• Delete unwanted test cases
• Export all test cases to JSON file
• Import test cases from JSON file
• Local storage persistence

How to Use

Basic Setup

1. Download the index.html file
2. Open it in any modern web browser
3. Start testing your APIs immediately

Making a Request

1. Select the HTTP method (GET, POST, etc.)
2. Enter the API URL
3. Add headers if required (in JSON format)
4. Choose request type:
   • JSON: Enter request body in JSON format
   • Form Data: Add key-value pairs or file uploads
5. Click "Send Request"

Managing Test Cases

1. Save a Test Case:

   • Configure your request
   • Click "Save Test Case"
   • Enter a name for the test case

2. Load a Test Case:

   • Click "Show Saved Tests"
   • Click on the desired test case from the sidebar

3. Export Tests:

   • Click "Export All Tests"
   • Save the JSON file to your computer

4. Import Tests:

   • Click "Import Tests"
   • Select previously exported JSON file

Example Usage

Testing a GET Request

URL: https://api.example.com/users Method: GET Headers: { "Authorization": "Bearer your-token-here" }

Testing a POST Request

URL: https://api.example.com/users Method: POST Headers: { "Content-Type": "application/json" } Body: { "name": "John Doe", "email": "john@example.com" }

Technical Details

Storage

• Uses browser's localStorage for saving test cases
• Data persists between sessions
• Export/Import feature for data backup and sharing

Security Notes

• Runs entirely in the browser
• No data is sent to any server except the API endpoints you specify
• CORS restrictions apply as per browser security policies

Browser Compatibility

• Works with all modern browsers:
  • Chrome (recommended)
  • Firefox
  • Safari
  • Edge

Limitations

1. CORS restrictions may prevent testing some APIs
2. File size limitations for localStorage
3. No environment variables support
4. No automated testing features

Contributing

Feel free to fork this project and submit pull requests for any improvements you'd like to add. Some areas for potential enhancement:

• Environment variables support
• Request/Response history
• Authentication helpers
• Request timing information
• Cookie management
• GraphQL support

License

MIT License - feel free to use this tool for any purpose.

Support

For issues, questions, or suggestions, please open an issue in the GitHub repository.

Connect with me

• Name: Arvind Kumar
• LinkedIn: LinkedIn Profile URL
• Email: Email

---

Created with ❤️ for API testing