Network and API

API tester online

API tester helps you quickly test your endpoint without Postman and complex setup. Useful for debugging integrations, webhooks, CRM and forms.

FreeNo registrationOnline in browser

What the tool can do

  • Supports GET, POST, PUT, PATCH and DELETE.
  • Shows response status, request time and headers.
  • Convenient for checking JSON API and webhooks.

How to use

  1. Select a method and provide a URL.
  2. Add headers and body if necessary.
  3. Run the request and check the server response.

Where is this service useful?

Checking CRM integrations and webhooks.
Debugging forms and server endpoints.
Quick smoke-test API before release.

FAQ

Is it possible to send private keys through this tool?

It's better to use test tokens and not send sensitive secrets in the public browser environment.

Why do some APIs respond with a CORS error?

This happens if the endpoint does not allow requests from the browser origin. Some scripts require a server proxy or allowed origin on the API side.

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Need a tool for your process?

We can make a custom calculator, validator, integration helper or audit panel for your data, CRM and internal scripts.