Automatic URL Encoder, Decoder tool with JSON Formatter, Validator and Beautifier features JavaScript Object Notation is a text-based standard format for representing structured data based upon JavaScript object syntax. JSON is used to transmit data in web applications. JSON is a popular file format and web developers and programmers often come across it. Web developers need a reliable, safe & easy to use JSON tool so that they can easily read, understand, format, validate, beautify and minify JSON."