Sample JSON Files — Free Download for API Testing & Development
Download free sample JSON files with realistic dummy data. Available from simple objects to 10,000-record arrays. Perfect for API testing, frontend mock data, and unit tests. No registration needed.
Generate custom JSON fileCreate up to 1GB locally in your browsersample-simple.json
87 B
1 rows
Verified file details
- Filename
- sample-simple.json
- Exact size
- 87 bytes
- Displayed size
- 87 B
- MIME type
- application/json
- Rows
- 1
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-simple.json
sample-array.json
15.4 KB
100 rows
Verified file details
- Filename
- sample-array.json
- Exact size
- 15,735 bytes
- Displayed size
- 15.4 KB
- MIME type
- application/json
- Rows
- 100
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-array.json
sample-1000-records.json
154 KB
1,000 rows
Verified file details
- Filename
- sample-1000-records.json
- Exact size
- 158,086 bytes
- Displayed size
- 154 KB
- MIME type
- application/json
- Rows
- 1,000
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-1000-records.json
sample-10000-records.json
1.52 MB
10,000 rows
Verified file details
- Filename
- sample-10000-records.json
- Exact size
- 1,590,674 bytes
- Displayed size
- 1.52 MB
- MIME type
- application/json
- Rows
- 10,000
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-10000-records.json
sample-nested.json
3.9 KB
20 rows
Verified file details
- Filename
- sample-nested.json
- Exact size
- 3,964 bytes
- Displayed size
- 3.9 KB
- MIME type
- application/json
- Rows
- 20
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-nested.json
sample-users.json
77.1 KB
500 rows
Verified file details
- Filename
- sample-users.json
- Exact size
- 78,991 bytes
- Displayed size
- 77.1 KB
- MIME type
- application/json
- Rows
- 500
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-users.json
sample-products.json
111 KB
500 rows
Verified file details
- Filename
- sample-products.json
- Exact size
- 113,197 bytes
- Displayed size
- 111 KB
- MIME type
- application/json
- Rows
- 500
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-products.json
sample-posts.json
107 KB
200 rows
Verified file details
- Filename
- sample-posts.json
- Exact size
- 109,359 bytes
- Displayed size
- 107 KB
- MIME type
- application/json
- Rows
- 200
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-posts.json
sample-geojson.json
12.7 KB
50 rows
Verified file details
- Filename
- sample-geojson.json
- Exact size
- 12,972 bytes
- Displayed size
- 12.7 KB
- MIME type
- application/json
- Rows
- 50
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-geojson.json
sample-api-response.json
3.5 KB
Verified file details
- Filename
- sample-api-response.json
- Exact size
- 3,582 bytes
- Displayed size
- 3.5 KB
- MIME type
- application/json
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-api-response.json
sample-schema.json
398 B
Verified file details
- Filename
- sample-schema.json
- Exact size
- 398 bytes
- Displayed size
- 398 B
- MIME type
- application/json
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-schema.json
sample-config.json
229 B
Verified file details
- Filename
- sample-config.json
- Exact size
- 229 bytes
- Displayed size
- 229 B
- MIME type
- application/json
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-config.json
sample-empty-array.json
2 B
Verified file details
- Filename
- sample-empty-array.json
- Exact size
- 2 bytes
- Displayed size
- 2 B
- MIME type
- application/json
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-empty-array.json
sample-null-values.json
10.1 KB
100 rows
Verified file details
- Filename
- sample-null-values.json
- Exact size
- 10,381 bytes
- Displayed size
- 10.1 KB
- MIME type
- application/json
- Rows
- 100
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-null-values.json
sample-unicode.json
12.3 KB
50 rows
Verified file details
- Filename
- sample-unicode.json
- Exact size
- 12,640 bytes
- Displayed size
- 12.3 KB
- MIME type
- application/json
- Rows
- 50
- License
- CC0 / Public Domain
- Download URL
- https://truefilesize.com/files/json/sample-unicode.json
Sample JSON file preview
sample-users.json
[
{
"id": 1,
"name": "Alice Johnson",
"email": "[email protected]",
"age": 28,
"city": "New York",
"active": true
},
{
"id": 2,
"name": "Bob Smith",
"email": "[email protected]",
"age": 34,
"city": "London",
"active": false
}
]Realistic but fictional data. Safe to use in demos.
Use cases for sample JSON files
- Testing REST API clients and consumers
- Seeding databases with test data
- Unit and integration testing with mock data
- Demo data for frontend development
- Prototyping data visualizations
- Postman / Insomnia collection testing
- Testing JSON schema validation
JSON structure types available
Simple object
{ "key": "value", "count": 42 }Array of objects (most common)
[{ "id": 1, "name": "Alice" }, { "id": 2, "name": "Bob" }]Nested objects
{ "user": { "address": { "city": "NY", "zip": "10001" } } }API response wrapper
{ "status": 200, "data": [...], "meta": { "total": 1000 } }How to fetch this JSON
JavaScript (fetch)
fetch('https://truefilesize.com/files/json/sample-users.json')
.then(res => res.json())
.then(data => console.log(data));Python (requests)
import requests
data = requests.get(
'https://truefilesize.com/files/json/sample-users.json'
).json()
print(data[:5])Frequently Asked Questions
Is the data in these JSON files real?
No. All data is generated with faker.js — realistic but entirely fictional. Names, emails, and addresses are randomly generated. Safe for demos, tests, and documentation.
What data fields are included in the users JSON?
The users JSON contains: id, name, email, age, city, and active (boolean). All fields contain realistic but fake data.
Can I directly fetch these JSON files in my app?
Yes. All files are served with CORS headers (Access-Control-Allow-Origin: *), so you can fetch them from any domain. Use them as mock API endpoints during development.
What is GeoJSON and when is it used?
GeoJSON is a standard JSON format for geographic data. It encodes points, lines, and polygons with coordinates. Used by mapping libraries like Leaflet, Mapbox, and Google Maps.
How do I validate a JSON file against a schema?
Use our sample-schema.json as a JSON Schema definition, then validate with libraries like ajv (JavaScript), jsonschema (Python), or online validators. JSON Schema defines the expected structure, types, and constraints for your data.
You might also need
Other data formats
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·8 min
Mocking REST APIs with JSON Fixtures
Fast frontend iteration without a backend. MSW, json-server, and sample fixtures for users, products, and nested objects. Copy-paste examples.
·7 min
Sample JSON Data for API Testing and Mocking
Free sample JSON files for testing REST APIs. Users, products, nested objects, GeoJSON, and API response wrappers with code examples.
·7 min
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