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API Response Mocker
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API Response Mocker

Generate mock JSON API responses with custom status codes, headers, and delay.

Overview

Free online API response mocker. Generate mock JSON API responses with custom status codes, headers, and delay. Create realistic test data for frontend development.

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Features

  • Custom HTTP status codes
  • Editable JSON body and headers
  • Configurable latency for loading states
  • Copy-ready response snippets
  • Great for frontend integration tests
  • Runs locally in the browser
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