Developer ToolsNew

API Request Previewer

Build and preview API requests. Generate cURL, fetch, axios, and Python code.

No actual requests are made. This tool only generates code.

GET https://api.example.com/users?page=1

Query Parameters

Generated Code

curl -X GET \
  -H "Accept: application/json" \
  "https://api.example.com/users?page=1"

## What does API Request Previewer do? Build and preview API requests. Generate cURL, fetch, axios, and Python code. This free online tool runs entirely in your browser, ensuring your data stays private.

How to use API Request Previewer

1
Set Method & URL
Select the HTTP method and enter the API endpoint URL.
2
Add Query Parameters
Add key-value pairs that will be appended to the URL as query strings.
3
Configure Headers
Add request headers like Content-Type, Accept, or custom headers.
4
Set Body & Auth
Add request body (JSON, form data) and configure authentication if needed.
5
Copy Generated Code
Select your language and copy the generated code snippet.

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Frequently Asked Questions

Does this tool make actual API calls?

No, absolutely not. This is a code generator/previewer only. No network requests are ever made.

Which languages are supported?

cURL, JavaScript (fetch), JavaScript (axios), Python (requests), PHP, and Node.js (http module).

How do I handle authentication?

Use the Auth tab to configure Bearer tokens, Basic auth, or API keys. The code will include the proper headers.

Can I save my request configuration?

Currently you need to re-enter your settings. Copy the generated code to save your request for later use.

What about file uploads?

File uploads require multipart/form-data which varies by language. This tool focuses on JSON and form data requests.