JSON files (JavaScript Object Notation) are a flexible and widely adopted format for managing structured data. It is known for its straightforward, human-readable syntax and effortless compatibility with numerous programming languages.

For those new to programming or data analysis, working with sample JSON files offers a practical way to grasp JSON syntax and structure. It provides a hands-on opportunity to experiment with real-world data formats.

Sample JSON are primarily used for testing and learning. We focus on providing well curated sample data sets that will help you test your application. These sample files are example files with dummy data. All the files can be downloaded for free!

Firstly, we need to ask the question: What is the JSON Format? Once we understand this, we can create a sample JSON file. We have made it easy for you by creating multiple sample files in .json format with varying file sizes.

In our site we have provided 3 ways to download the JSON Files. The first link opens the file in a new browser tab. The second link opens the file in our online json editor json-format.comindicated with symbol . The third is a direct download to your computer, indicated with symbol Sample JSON file for testing.

Head over to our editor at json-format.com. Paste the above JSON object code. Click on Download. Voila you have created your first simple sample json file.

If you want to write a JSON example, begin with a simple list of key/value pairs inside curly braces. JSON stands for JavaScript Object Notation. It is easy to read and simple to use.Here is a basic example:

{
  "name": "John",
  "age": 30,
  "city": "New York"
}

Each key is a word in quotes. The keys in the above example are “name”, “age”, and “city”. The value after the key can be text, a number, true or false, a list, or even another object. So the values for the above example are “John”, 30, and “New York”.

Here is a basic example of JSON file

{
  "name": "John Doe",
  "age": 30,
  "isStudent": false,
  "hobbies": ["reading", "hiking", "gaming"],
  "address": {
    "street": "123 Main St",
    "city": "Anytown",
    "zip": "12345"
  }
}

The term JSON payload comes from the idea of a payload in computer science and networking. A payload means the real data being sent, not the extra information that explains how to deliver it. In other words, the payload is the ‘message content’. When data moves between a client and a server, it often uses JSON (JavaScript Object Notation) format. JSON is popular because it is simple, easy to read, and works almost everywhere. The actual information inside the request or response, like user details, product info, or settings, is called the JSON payload.

For example:

{ "id": 42,
"name": "John Doe",
"role": "Admin"
}

Here, the object with id, name, and role is the payload. The request headers might say what kind of data it is or who can access it, but the payload is the real data being sent. That’s why it’s called a JSON payload: it is the important data, packed in JSON format, that gets sent between systems in an API request or response.

In this data set we have provided the the following file sizes of JSON files.

• 1 KB
• 10 KB
• 100 KB
• 500 KB
• 1 MB
• 5 MB
• 10 MB
• 20 MB
• 30 MB
• 50 MB
• 100 MB
• 200 MB
• 300 MB
• 500 MB
• 1 GB

This list provides a good variety of file sizes that will help in your projects. We are the only site that provides files which of such large sizes. Hope that helps you in your project. The last update for this list was on 11-August-2025.

Would you like larger files? Let us know, we would be happy to create one for you for free. Write to use at json-format.com

Our objective is to be the largest repository of sample JSON files.

JSON files are plain-text documents formatted with key–value pairs. They use curly braces { } for objects and square brackets [ ] for arrays. Even a large JSON file sample download, JSON files download, or sample JSON file URL will follow the same structure as smaller files.

JSON is an example of a lightweight data-interchange format. It’s based on JavaScript object syntax but is language-independent—almost every programming language can parse and generate JSON. Whether you’re working with a large JSON file sample download, JSON files download, or sample JSON file URL, JSON is commonly used for:

• Web APIs and REST services to send and receive structured data.
• Configuration files in frameworks and tools.
• Data storage for NoSQL databases like MongoDB.

A JSON file should be properly structured with key-value pairs enclosed in curly braces. Each key should be in double quotes followed by its value. You can refer to Sample JSON files pdf or Download sample JSON file to see how a JSON file is formatted.

No, a TXT file is not a JSON file. A TXT file stores plain text, while a JSON file follows a specific data structure. However, you can convert a TXT file into a JSON file by formatting the text correctly. To understand the correct structure, check our Large JSON file sample download.

You can create a JSON file by writing your data in JSON format and saving it with the .json extension. It’s simple and supported by most text editors. For reference, you can Download sample JSON file or review Sample JSON files pdf for proper formatting.