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API Request Tester

⭐ Featured ✨ New

Browser-based Postman-like tool to compose and send HTTP requests and inspect responses in real time.

This free browser-based API Request Tester lets you browser-based Postman-like tool to compose and send HTTP requests and inspect responses in real time. All processing happens locally in your browser — no data is sent to any server, ensuring complete privacy.

How to Use API Request Tester

Open the tool and follow the on-screen instructions. Input your data, configure any options, and get instant results. Copy output with one click.

Features

  • ✓ Free developer tool — no signup required
  • ✓ 100% client-side processing — no data leaves your device
  • ✓ Works in any modern browser on any device
  • ✓ Instant results with one-click copy

Use Cases

  • → Developer Tools workflows
  • → Quick online utility for everyday tasks
  • → Professional and personal use
api http rest postman get post request response developer testing curl

Frequently Asked Questions

Yes, API Request Tester is 100% free with no limitations, no signup, and no hidden fees. It will always remain free.
Absolutely. API Request Tester runs entirely in your browser. No data is sent to any server or stored anywhere. Everything stays on your device.

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