API Tester
Developer ToolsTest REST API endpoints with presets and response headers.
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About This Tool
A professional-grade API testing tool. Send GET requests to public endpoints, inspect JSON responses, view status codes, and use built-in presets for quick testing.
Frequently Asked Questions
Clicking a preset button automatically fills the URL field with a reliable, public API endpoint. This allows you to test the tool functionality or see how a standard JSON response looks without typing.
Cross-Origin Resource Sharing (CORS) is a security feature. If an API server does not explicitly allow requests from other websites, your browser will block the response for security reasons.
Currently, this web-based version supports GET requests for public data fetching. POST and other methods often require complex headers and body payloads which are restricted in simple browser fetches.
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