JSON Data Sample and Examples

JSON was created to be an easier and more efficient way of handling data transfer between systems. With the rise in popularity of RESTful APIs, it has become increasingly important to know what is JSON and how to work with it in different languages.

What is JSON and what does it stand for?

JSON stands for JavaScript Object Notation. It is a data interchange format that represents structured data in text form and it is easy for humans to read and write. The JSON syntax was originally derived from the object literal notation of JavaScript, but it has come to be used independently of JavaScript.

JSON Data Sample

This page shows examples of messages formatted using JSON, which are generated randomly. To get new set of data, you can refresh this page.

If you need to modify the example below or create a whole new complicated JSON document, try this json tool.

Note: the data below is fictional, they don’t reflect real world data.

JSON Example with dynamic data

Materialize colors JSON Example

  "red": "#f44336",
  "pink": "#e91e63",
  "purple": "#9c27b0",
  "deeppurple": "#673ab7",
  "indigo": "#3f51b5",
  "blue": "#2196f3",
  "lightblue": "#03a9f4",
  "cyan": "#00bcd4",
  "teal": "#009688",
  "green": "#4caf50",
  "lightgreen": "#8bc34a",
  "lime": "#cddc39",
  "yellow": "#ffeb3b",
  "amber": "#ffc107",
  "orange": "#ff9800",
  "deeporange": "#ff5722",
  "brown": "#795548",
  "grey": "#9e9e9e",
  "black": "#000000",
  "white": "#ffffff",

Google Maps Markers JSON Example

  "markers": [
      "name": "Google, 8th Avenue",
      "position": [40.7414728,-74.0055813],
      "name": "Microsoft, Times Square",
      "location": [40.7565323,-73.9904037]
      "name": "Tesla, Washington Street",
      "location": [40.7411595,-74.0097167]    
      "name": "Amazon New York",
      "location": [40.7532822,-74.0010696]

JSON rules and tips

Basic rules of a JSON string:

  • Data is in name/value pairs.
  • Data is separated by commas.
  • Curly braces hold objects.
  • Square brackets hold arrays.
  • JSON keys need to be surrounded by quotes.
  • JSON is case-sensitive because it is basically just a hierarchical structure of objects with keys and values.
  • JSON only allows key names to be strings. Numbers can’t be used as keys but you can still them as string like “1”, “2”.
  • JSON does not support comments. You can work around it by using a key and value understood as comment.

Working with JSON

When storing an array or an object in database as a JSON string, you need a different way to search for data. For example, we have a field called phones of Market model, and its first data is stored as...

Fetching JSON data from an API is necessary task for most apps. Fortunately, Dart and Flutter provide some built-in packages to make working with external data and read JSON string easier. We need 2 packages, http and dart:convert, to handle...

Need to create a clean, organized JSON string? Have no fear! This tool is specifically built for this purpose and makes it fast & easy. With this tool, you can play with string formatting in order to understand how each...
JSON has become the de facto standard for information exchange and Python makes it easy to work with JSON format with a built-in library called json. Convert JSON to string There are 2 ways to convert JSON to a string,...
JSON is always a hot topic in both web and mobile development. There are lots of good libraries to handle JSON for Android. And it is not hard to choose one. You can use the one that is the most...


What is a JSON file used for?

JSON is a popular and efficient data exchange format that can be used to transmit information. JSON files are typically smaller in size than XML or HTML documents, which makes them an excellent choice for transferring data over limited bandwidth connections, such as mobile networks. The simplicity of the content within these files also helps with speedier page load times, making this type of file ideal for use on websites where every second counts!

In addition to being faster and more lightweight than other formats like XML, JSON features shorter development cycles since it doesn’t require parsing before you start work on your project – just open the file directly from your server or local disk! Using less CPU power means that there’s more available resources for doing productive tasks while still loading the file’s content quickly enough.


JSON, or JavaScript Object Notation, is a language-independent data storage format that lets you store and organize all of the information in your app. XML stands for eXtensible Markup Language and was originally intended as a universal way to create structured documents containing metadata about any type of object.

Both formats are text files which can be written by hand but usually need special software like JSON Editor Online (free) or Visual Studio Code.

The key difference between these two file types is their structural organization: XML uses tags such as “<title>” and “tags” within the document where JSON doesn’t use them at all! There are many more differences in their document’s structures.

What are differences between JSON and CSV?

CSV files use commas as delimiters between columns in a table that defines what should be stored where; each row is considered an item. They’re not very flexible but can still be useful for storing fairly small amounts of information like contact lists with no sub-elements (like addresses).

JSON uses curly brackets ({}), colons(:) and semi-colons(;) which makes them easier for programmers to work with than CSV files because they don’t need special software programs–programmers just cut and paste from.

CSV is easy to create, but JSON offers more flexibility. It’s also popular because it can be easily converted into a JavaScript Object Notation or Java Data Objects.

Why is JSON so popular?

JSON became popular because it is lightweight, easy to read and write with a syntax similar to modern programming language’s array and object. JSON uses text for data storage which means that it can be used in every programming language since all languages have some way of creating strings from the keyboard or variables. The simplicity of this type of file makes storing, updating and reading very efficient and quick with few lines of code required as long as programmers use their resources wisely.

The other main reason why JSON has been embraced by developers is due to its versatility when working with various databases including MySQL, SQLite, Oracle Database and PostgreSQL among others. This also means that there’s less work needed on each individual application level interface (API) side too- just need an API.

How do I create a JSON file?

In order to create the file you will need a text editor like Atom or Notepad from which one can write or edit code using an integrated development environment.

  • Open the software up on your computer
  • Create a new file with “New File”
  • Add content
  • Save the file with .json format

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