10 MB JSONL sample file

A JSONL file of exactly 10,485,760 bytes. It is a valid JSON Lines file, generated for this site and checked with an independent parser.

sample-jsonl-10mb.jsonl

10 MB10,485,760 bytes

Download 10 MB JSONL

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Type: application/jsonl
SHA-256: 07ecd7c2600bfc64a22477767dd245d589367f6e3faeca86f97213bb96427d34
Direct URL: https://sampletestfiles.com/downloads/jsonl/sample-jsonl-10mb.jsonl

What is in this file

30,581 JSON objects, one per line, followed by one short object whose "note" string is lengthened to reach the exact size.

Lines	30,582
Records per line	1
Encoding	UTF-8 (ASCII characters only)
Line endings	LF

How the file begins

The opening lines of sample-jsonl-10mb.jsonl, exactly as they appear in the file.

{"id":1,"uuid":"a6cf3b6b-cd57-4173-a942-a2339c75f449","name":{"first":"Ethan","last":"Zeller"},"email":"ethan.zeller1@example.com","active":true,"bala…
{"id":2,"uuid":"e86fd25c-cc5a-44ae-a8ee-4439d8d6c68e","name":{"first":"Elena","last":"Underhill"},"email":"elena.underhill2@example.net","active":true…

Preview

Shows the first 64 KB of the file.

Where 10 MB matters

A 10,485,760-byte file: over the default limits of PHP, API Gateway and Spring Boot requests. These are the default limits a file of this size is useful for testing:

System	Limit	Note
Amazon API Gateway	10 MB payload	A 10 MB file in a multipart or base64 body is over the limit.
Spring Boot multipart	10 MB per request by default (max-request-size)	Exceeded once form overhead is added.
PHP	8 MB POST body by default (post_max_size)	Rejected before the script runs.
Amazon S3 multipart upload	5 MiB minimum part size	This file splits into exactly two minimum-sized parts.
Email attachments	Commonly 20 to 25 MB per message	10 MB fits, at about 13.3 MB once encoded.

All 10 MB sample files

Use this file for

Exercising chunked and resumable uploads
Loading datasets for machine-learning experiments
Testing bulk import endpoints

Testing notes for JSONL

A blank line or a trailing comma on any line breaks strict readers, so decide how your importer treats them.
Passing the whole file to a standard JSON parser fails, because the file as a whole is not one JSON value.

JSONL format reference

Technical details

File name	sample-jsonl-10mb.jsonl
Format	JSONL (JSON Lines)
Extension	.jsonl
MIME type	application/jsonl
Size	10,485,760 bytes (10 MB)
Kind	Text
SHA-256	07ecd7c2600bfc64a22477767dd245d589367f6e3faeca86f97213bb96427d34
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-jsonl-10mb.jsonl 'https://sampletestfiles.com/downloads/jsonl/sample-jsonl-10mb.jsonl'
sha256sum sample-jsonl-10mb.jsonl     # Linux
shasum -a 256 sample-jsonl-10mb.jsonl # macOS

On Windows, run Get-FileHash sample-jsonl-10mb.jsonl -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 10 MB?: Yes. It is 10,485,760 bytes, which is 10 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 10 MB JSONL file?: 30,581 JSON objects, one per line, followed by one short object whose "note" string is lengthened to reach the exact size.
How is JSONL different from JSON?: A JSON file is one value, usually an array. A JSONL file is many values separated by line breaks, which can be appended to and read as a stream.

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