200 KB JSON sample file
A JSON file of exactly 204,800 bytes. It is a valid JavaScript Object Notation file, generated for this site and checked with an independent parser. Use it wherever you need a 200 KB sample, test or dummy JSON file.
Download
sample-json-200kb.json
200 KB204,800 bytes
Download 200 KB JSONDirect download. No sign-up and no waiting.
- Type
- application/json
- SHA-256
0af7b699470fe6429f7146d6952344323f6d89b6ca8754c76d4e51479df32223- Direct URL
https://sampletestfiles.com/downloads/json/sample-json-200kb.json
What is in this file
An object with a "records" array of 593 fictional customer objects, each with nested objects, an array and a nullable field. A final "padding" string brings the file to the exact size.
| Records | 593 |
|---|---|
| Root type | Object |
| Value types used | string, number, boolean, null, array, object |
| Encoding | UTF-8 (ASCII characters only) |
| Indentation | 2 spaces, one record per line |
How the file begins
The opening lines of sample-json-200kb.json, exactly as they appear in the file.
{
"generator": "SampleTestFiles",
"description": "Sample JSON file (200 KB) for testing",
"records": [
{"id":1,"uuid":"a6cf3b6b-cd57-4173-a942-a2339c75f449","name":{"first":"Ethan","last":"Zeller"},"email":"ethan.zeller1@example.com","active":true,"…
{"id":2,"uuid":"e86fd25c-cc5a-44ae-a8ee-4439d8d6c68e","name":{"first":"Elena","last":"Underhill"},"email":"elena.underhill2@example.net","active":…Preview
Shows the first 64 KB of the file.
Where 200 KB matters
A 204,800-byte file: twice the default body limit of most API frameworks, and a common cap for photo and signature uploads on application forms. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| Express body parsers | 100 KB by default | Rejected with 413 unless the limit is raised. |
| Amazon DynamoDB items | 400 KB per item | 200 KB fits, even after base64 encoding takes it to about 273 KB. |
| Azure Service Bus, Standard tier | 256 KB per message | Fits as raw bytes, but not once base64-encoded. |
Use this file for
- Testing image compression targets
- Load-testing endpoints with large payloads
- Seeding front-end components with data
Testing notes for JSON
- Most parsers read numbers as 64-bit floats, so integers above 2^53 silently lose precision. Send large identifiers as strings.
- Parsing a large document with a DOM-style parser needs several times its size in memory. Use a streaming parser or JSON Lines for big data.
Technical details
| File name | sample-json-200kb.json |
|---|---|
| Format | JSON (JavaScript Object Notation) |
| Extension | .json |
| MIME type | application/json |
| Size | 204,800 bytes (200 KB) |
| Kind | Text |
| SHA-256 | 0af7b699470fe6429f7146d6952344323f6d89b6ca8754c76d4e51479df32223 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Data |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-json-200kb.json 'https://sampletestfiles.com/downloads/json/sample-json-200kb.json'
sha256sum sample-json-200kb.json # Linux
shasum -a 256 sample-json-200kb.json # macOSOn Windows, run Get-FileHash sample-json-200kb.json -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 200 KB?
- Yes. It is 204,800 bytes, which is 200 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 200 KB JSON file?
- An object with a "records" array of 593 fictional customer objects, each with nested objects, an array and a nullable field. A final "padding" string brings the file to the exact size.
- What is the structure of the sample JSON?
- An object with a "records" array. Each record has strings, numbers, a boolean, a nullable field, a nested object and an array, so most deserialiser paths are exercised.