JSON 2 JSONP

API

On-the-fly JSON to JSONP conversion API for cross-domain JavaScript requests

Overview

The JSON 2 JSONP API provides a RESTful endpoint to convert JSON data (via remote URL or raw input) into JSONP format instantly. It accepts GET requests with parameters for JSON source (URL or raw data) and a custom callback name. Responses wrap JSON in the specified callback, enabling cross-domain client-side JS access without CORS issues. Ideal for legacy apps, widgets, or projects fetching JSON from services lacking CORS headers, eliminating server-side proxy needs.

Example Integration (JavaScript)

script.js JS


fetch('https://json2jsonp.com/')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful interface
On-the-fly conversion
Supports remote JSON URLs
Custom callback support
No authentication required

Frequently Asked Questions

? Is JSON 2 JSONP free to use?

Yes, JSON 2 JSONP is completely free for public use with no hidden fees or subscriptions.

? Does it require an API Key?

No, the API does not require any authentication or API key to access its conversion services.

? What is the response format?

Responses are in JSONP format, with original JSON data wrapped in a customizable callback function specified in the request.

Top Alternatives

JSONP Converter (RapidAPI) Search Google

crossorigin.me (proxy service) Search Google

Tool Info

Pricing Free

Category Development

Platform Public API

Pros

⊕ Solves cross-domain CORS restrictions
⊕ Easy URL-based integration
⊕ Accepts both URLs and raw JSON
⊕ No setup or API key needed

Cons

⊖ Potential rate limiting
⊖ No service level agreement (SLA)
⊖ Dependent on third-party uptime
⊖ Limited to JSONP output