JSON Array Generator
Generate a sample JSON array in your browser. Set the number of objects and the field names, and get a pretty-printed JSON array of example objects you can copy, download, or use as test data.
Optional types: field:type or field:type:rule. e.g. age:int:18-65, active:bool, price:float, status:enum:active|inactive, tags:array, address.city (nesting).
Key Features
Set the Item Count
Choose how many objects the array should contain. The generator creates exactly that many items, numbered from the first element.
Define Field Names
Type a comma-separated list of field names. Each object in the array uses those keys, so the result matches the shape you need.
Smart Sample Values
Field types are inferred from the name: id gets a number, email gets an address, age gets a number, and so on. Add an explicit type with field:type (such as age:int:18-65, active:bool, price:float, status:enum:active|inactive, tags:array) to force a type, and use dotted names like address.city to build nested objects.
Pretty-Printed Output
The result is a formatted JSON array you can read immediately. Copy it or download it as a .json file.
Copy or Download
Copy the generated array to your clipboard or download it as a .json file for use as fixtures, mocks, or API examples.
Browser-Based Processing
Generation happens in your browser. The page does not require an account or send your input to a remote service.
How to Use
Set the item count
Enter how many objects you want in the array. The count must be a positive number.
List the field names
Type the field names separated by commas, for example id, name, email. Add a type with field:type to force a value type (age:int:18-65, active:bool, price:float, status:enum:active|inactive, tags:array), and use dotted names like address.city to nest objects.
Generate the array
Click Generate JSON Array. The tool builds a pretty-printed JSON array of example objects.
Copy or download
Copy the array or download it as a .json file. Use it as test data, a mock response, or a documentation example.
JSON Array Generator Example
Create a small array of example user objects with typed and nested fields.
Count: 2 Fields: id, name, email, age:int:18-40, active:bool, address.city
Two objects with inferred fields plus a typed age, a boolean flag, and a nested address.city key.
[
{
"id": 1,
"name": "Name 1",
"email": "user1@example.com",
"age": 27,
"active": true,
"address": {
"city": "value 1"
}
},
{
"id": 2,
"name": "Name 2",
"email": "user2@example.com",
"age": 33,
"active": false,
"address": {
"city": "value 2"
}
}
]id increments per item, age is a random integer in the 18-40 range, active is a boolean, and address.city is nested into an object automatically.
Sample values are placeholders for testing, not real records.
How to Generate a JSON Array Online
What Is a JSON Array Generator?
A JSON array maker, also called a JSON array generator, lets you create json array content without writing it by hand. It builds a JSON array of objects from a few settings: set the item count and the field names and get a ready-to-use array.
How to Generate a JSON Array
- Set the count: choose how many objects the array should contain.
- List the fields: type the field names separated by commas.
- Generate: the tool creates a pretty-printed JSON array.
- Copy or download: use the result as fixtures, mocks, or examples.
Where It Helps
- Test data: seed unit tests or API stubs with sample arrays.
- Mock responses: return a realistic array from a local mock server.
- Documentation: show a clear JSON array example in guides.
- Prototyping: quickly shape the data a form or component expects.
Sample Values
Fields named like id receive incrementing numbers and email-style fields receive example addresses. Other fields get labeled sample text. The values are placeholders, so replace them with real data before any production use.
Privacy
Generation runs entirely in your browser. Your settings are not uploaded and no account is required.
