JSON Lite

Fast JSON viewer – highlights, shows items count/size, handles large files
Features:

– Format JSON/JSONP responses and clipboard
– Select and format/encode/decode text on every page
– Collapsible arrays, objects and long values
– Collapse all childs with Ctrl(Command) + Click
– Collapse property also on all sibling items with Alt(Option) + Click
– Count items and properties in a collection
– Show collection sizes
– Do its best to show large (10MB+) JSON files
– Do its best to show invalid JSON files
– Do not sort objects with numeric keys
– Do not round large numbers
– "Save as…" saves the original JSON document
– Select and copy a working JSON from the formatted JSON