API Tester Pro - REST Client, HTTP Request Builder, Debug & Collections
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- Live on Store
REST API client and HTTP tester. Send GET, POST, PUT, DELETE. JSON viewer, auth, headers. Postman alternative.
API Tester Pro is a fast, full-featured REST client and API testing tool that runs entirely inside your browser. Send HTTP requests, inspect responses, debug APIs, and manage saved collections — without installing a heavy desktop app.
KEY FEATURES:
• Send GET, POST, PUT, PATCH, DELETE, HEAD, and OPTIONS requests
• View formatted response body, headers, status codes, and timing
• Syntax-highlighted JSON, XML, and HTML response viewer
• Authentication support — Basic Auth, Bearer Token, API Key, OAuth headers
• Request body support — JSON, form data, raw text, and binary
• Save and organize requests into collections for reuse
• Request history — quickly re-send previous API calls
• Import and export collections for team sharing
• Environment variables for switching between dev, staging, and production
A lightweight REST client alternative that's fast and private. No signup. No cloud dependency. Install and start testing.