JSON：JSON - Introduction - W3Schools

json   format json online Learn what JSON is, how to use it, and why it is useful for data exchange. JSON is a text format based on JavaScript object notation that can be parsed and stringified by JavaScript functions

json formatter The JSON FormatterValidator beautifies and debugs JSON data with advanced formatting and validation algorithms

jsonplaceholder Learn what JSON Placeholder is, why it is used, and how to use it with JavaScript. See code examples of fetching, creating, updating, deleting, and filtering data from JSON Placeholder