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  • About JSON Viewer Online Tool

    Best JSON Viewer Online - JSON Validator

    Use our free online JSON File Viewer, JSON Formatter, JSON Beautifier, JSON Minifier to

    • Convert the JSON string into a human-friendly readable format.
    • Minify or beautify the JSON data.
    • Convert the JSON data into a CSV or XML format.
    • Parse and display the JSON data in a JSON tree view.
    • After completing the task, download the JSON data as a file (.TXT format).

    What is JSON, and why do we use it?

    The word JSON, which stands for JavaScript Object Notation, is a way of storing and exchanging data. As its name implies, JSON has derived from JS (JavaScript) programming language, but it supports several other languages like PHP, Python, Ruby, and Java.

    Compared to other exchanging formats, JSON text syntax makes it easier to understand. One can easily convert the JavaScript Object to JSON. Therefore, JSON is mainly used to send the data between the web servers and web applications. The web services and APIs rely on JSON to provide the public data. It uses serializable values that can be key-value pairs, array data types, etc.

    What are the advantages of preferring the JSON?

    The JSON is preferred over other exchanging formats because of the following reasons.

    • The JSON format is light weighted and supported by all the browsers.
    • Because of its lightweight, JSON file takes less time to execute.
    • Because of its array data structure, one can share it easily. That's why web services and APIs rely on JSON to provide public data.
    • Compared to other exchanging formats, JSON text syntax makes it easier to understand.
    • The XML data structure creates large files because of unnecessary closing tags, which are somehow the XML requirement. On the other side, the JSON structure is lengthy but straightforward. That's why it's preferred over XML.

    How is JSON data organized?

    In JSON,

    • The objects are enclosed in curly brackets {} and are in key-value format.
    • The keys are the string, and the values are in authorized JSON format.
    • That ":" sign separates the key-value pair—for example, "Number": 123.
    • The comma "," separates the key-value pair.
      • For example
      • "Null": null,
      • "Number": 123,
    • For accessing the name key, you can use a dot notation.
    • For accessing the values, you can use a dot or square bracket.
    • In JSON data structure, the arrays are similar to JS data structure.
    • The JSON values are found on the right of the colon. These need to be one of the six simple data types.
      1. String
      2. Numbers
      3. Objects
      4. Boolean
      5. Null
      6. Arrays

    Which standards to follow in JSON?

    In JSON, some standards need to be followed. These standards are listed below.

    • The objects are enclosed in curly brackets {} and are in key-value format.
    • An empty object can be expressed by {}.
    • The arrays are enclosed in square brackets [].
    • An empty array can be defined by [].
    • Each key-value pair represents a member.
    • Each member must have a unique key within an object structure.
    • The key of the member should be in double-quotes. Same with the value, if it's a string.
    • The Boolean values are expressed using "true" or "false" in lower case.
    • The number value should not have a leading zero(es) and is presented using a double-precision floating-point format.
    • The null values are represented by the "null" in the lower case.
    • Use backslash characters to escape the "Offensive" characters.
    • Convert the dates or other similar data types to strings as they are not correctly supported.
    • In JSON format, a comma "," must follow each member of an object or array if that member is not the last one.
    • The '.json' is the standard extension for the JSON file (when it stands alone).
    • In JSON format, the mime type for JSON files is 'application/JSON.'

    How to use the online JSON viewer to view, validate, beautify or minify the JSON data?

    Please perform the following steps to use our free online JSON File Viewer, JSON Formatter, JSON Beautifier, and JSON Minifier.

    • Open the JSON Viewer Online - JSONLint Validator.
    • You can upload the file or copy & paste the JSON data.
    • If the JSON data is error-free, our JSON Validator will validate it.
    • After verification, you can convert the JSON data into XML or CSV format.
    • If you want to beautify or minify the JSON data, our JSON beautifier or minifier will perform your required step.
    • If you're going to see the JSON data in a tree view, an online JSON viewer will help.