What are some alternatives?
When comparing JSON Lint Pro for Desktop and JSON Online Viewer, you can also consider the following products
JSONLint - JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
JSONFormatter.org - Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON
JSONedit - JSON editor for Windows and Wine with tree, list and text views.
JSONMate - JSON tree editor, inspector and beautifier
JSON Editor Online - View, edit and format JSON online