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API Tester Pro

5.0(

1 rating

)
ExtensionDeveloper Tools8 users
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Overview

Premium API testing workspace for REST, GraphQL and WebSocket workflows.

API Tester Pro is a powerful and lightweight browser extension built for developers to test and debug APIs directly from their browser. It supports REST, GraphQL, and WebSocket workflows in a single interface, eliminating the need for multiple tools. Users can create and send requests, analyze responses, manage headers, and reuse saved configurations for faster development. Key Features: REST API testing with full request customization GraphQL query and mutation support WebSocket connection testing Save and manage API configurations locally Clipboard support for quick data handling Clean and developer-friendly interface API Tester Pro is designed for simplicity, performance, and efficiency, making it ideal for frontend developers, backend developers, and testers.

Details

  • Version
    2.1.0
  • Updated
    March 26, 2026
  • Offered by
    Anslation
  • Size
    683KiB
  • Languages
    English
  • Developer
    Anslation LLC
    30 North Gould Street, Sheridan, WY 82801 Sheridan, WY 82801 US
    Email
    nikhil@anslation.com
    Phone
    +91 74158 85838
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    139235368

Privacy

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The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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