JSON 2 JSONP

About JSON 2 JSONP

JSON 2 JSONP is a web service that converts JSON data into JSONP on the fly, enabling cross-domain data requests using pure JavaScript. It works by accepting a URL and a callback function name as parameters, then returning the JSON content wrapped in that callback as executable JavaScript.

Requests are served with a content type of "application/javascript" and are cached for 4 hours to improve performance. The service also provides a bookmarklet for quick conversions directly from the browser toolbar.

It is intended for developers who need to retrieve JSON data from a different domain and require it in JSONP format to work around cross-domain restrictions. The URL passed to the service must be properly encoded, for example using JavaScript's "encodeURIComponent" or PHP's "urlencode()" function.

Key features

• Converts any JSON URL to JSONP on-the-fly
• Accepts a url and callback parameter to generate the JSONP response
• Serves responses as content type application/javascript
• Caches responses for 4 hours for better performance
• Provides a drag-to-bookmarks bookmarklet for quick conversions

Frequently asked questions