15 MB CSV sample

A CSV file of exactly 15,728,640 bytes. It is a valid Comma-separated values file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 15 MB sample, test or dummy CSV file.

sample-csv-15mb.csv

15 MB15,728,640 bytes

Download 15 MB CSV

Created in your browser in a few seconds, then checked against the SHA-256 checksum. No sign-up.

Type: text/csv
SHA-256: 2978601c4bf275b6ac8f0ab8123f2a6fe043f0d0d442ad350c31333ed2bd8a5d
Delivery: Created in your browser from static generator assets (how it works).

What is in this file

A header row and 116,277 rows of fictional customer records in 12 columns. The notes field of the last row is lengthened so the file lands on the exact byte count.

Data rows	116,277
Columns	12
Delimiter	Comma
Header row	Yes
Line endings	CRLF (RFC 4180)
Encoding	UTF-8 (ASCII characters only)

How the file begins

The opening lines of sample-csv-15mb.csv, exactly as they appear in the file.

00000000  69 64 2c 66 69 72 73 74  5f 6e 61 6d 65 2c 6c 61 |id,first_name,la|
00000010  73 74 5f 6e 61 6d 65 2c  65 6d 61 69 6c 2c 70 68 |st_name,email,ph|
00000020  6f 6e 65 2c 63 69 74 79  2c 63 6f 75 6e 74 72 79 |one,city,country|
00000030  2c 73 69 67 6e 75 70 5f  64 61 74 65 2c 70 6c 61 |,signup_date,pla|

Preview

Creates the file in your browser and shows its first 64 KB.

Where 15 MB matters

A 15,728,640-byte file, 15 MB in the binary units that operating systems and upload limits use. It is useful wherever a form, an API gateway, a storage quota or a mail server is configured with a limit of about this size.

All 15 MB sample files

Use this file for

Measuring download speed from your own server or CDN
Seeding databases and demos
Testing data import features

Testing notes for CSV

Values beginning with =, +, - or @ can be executed as formulas when a CSV is opened in a spreadsheet, a risk known as CSV injection.
Splitting each line on commas breaks on quoted fields. Test with the quoted-fields sample before trusting an importer.

CSV format reference

Technical details

File name	sample-csv-15mb.csv
Format	CSV (Comma-separated values)
Extension	.csv
MIME type	text/csv
Size	15,728,640 bytes (15 MB)
Kind	Text
SHA-256	2978601c4bf275b6ac8f0ab8123f2a6fe043f0d0d442ad350c31333ed2bd8a5d
Created	2026-10-23
Validation	See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility.
Preview	Available on this page
Source	Generated in your browser by this site's generator; not copied from elsewhere
Licence	Free to use, modify and redistribute (terms)
Category	Spreadsheets

Check the stated structure and checksum against your application requirements. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Verify your copy

This file is created in your browser, so it has no direct URL for curl or wget. The generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.

sha256sum sample-csv-15mb.csv     # Linux
shasum -a 256 sample-csv-15mb.csv # macOS

On Windows, run Get-FileHash sample-csv-15mb.csv -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.

Related files

Questions about this file

Is this file exactly 15 MB?: Yes. It is 15,728,640 bytes, which is 15 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 15 MB CSV file?: A header row and 116,277 rows of fictional customer records in 12 columns. The notes field of the last row is lengthened so the file lands on the exact byte count.
Is the data real?: No. Names are invented, email addresses use the reserved example.com domains and phone numbers use the fictional 555-01xx range.

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