1 MB CSV sample file
A CSV file of exactly 1,048,576 bytes. It is a valid Comma-separated values file, generated for this site and checked with an independent parser.
Download
sample-csv-1mb.csv
1 MB1,048,576 bytes
Download 1 MB CSVDirect download. No sign-up and no waiting.
- Type
- text/csv
- SHA-256
e516790c000f0caeb1c3e2db66376a06ae36f79a6975559c29010feceb8d870d- Direct URL
https://sampletestfiles.com/downloads/csv/sample-csv-1mb.csv
What is in this file
A header row and 7,885 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 | 7,885 |
|---|---|
| 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-1mb.csv, exactly as they appear in the file.
id,first_name,last_name,email,phone,city,country,signup_date,plan,balance,active,notes
1,Ethan,Zeller,ethan.zeller1@example.com,+1-202-555-0163,Pune,IN,2021-07-10,team,2769.84,true,Billing contact changed recently
2,Elena,Underhill,elena.underhill2@example.net,+1-202-555-0166,Porto Alegre,BR,2024-04-28,free,4647.61,true,Interested in bulk pricing
3,Ethan,Farrow,ethan.farrow3@example.org,+1-202-555-0170,Krakow,PL,2023-08-24,business,536.73,false,Interested in bulk pricing
4,Victor,Brennan,victor.brennan4@example.com,+1-202-555-0175,Lisbon,PT,2024-12-18,business,2410.43,true,Referred by an existing customer
5,Felix,Ibarra,felix.ibarra5@example.net,+1-202-555-0171,Graz,AT,2025-11-14,starter,2832.21,false,Requested data export
6,Kira,Hollis,kira.hollis6@example.com,+1-202-555-0109,Cork,IE,2025-06-25,starter,3636.58,true,Prefers invoices by emailPreview
Shows the first 64 KB of the file.
Where 1 MB matters
A 1,048,576-byte file: exactly the default upload limit of nginx, Spring Boot and Next.js. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| nginx | 1 MB by default (client_max_body_size) | A multipart upload of this file exceeds the limit by the size of the form boundaries. |
| Spring Boot multipart | 1 MB per file by default (max-file-size) | A file of exactly 1 MB is at the limit. |
| Next.js API routes and Server Actions | 1 MB by default | Larger bodies need the size limit raised in configuration. |
| Cloud Firestore documents | 1 MiB (1,048,576 bytes) | The same number of bytes as this file. |
| Apache Kafka messages | About 1 MB by default | Brokers reject larger records unless message.max.bytes is raised. |
Use this file for
- Download tests on mobile connections
- Seeding databases and demos
- Testing data import features
Testing notes for CSV
- Excel opens CSV files using the system locale, so a file that works in one country shows everything in one column in another.
- Values beginning with =, +, - or @ can be executed as formulas when a CSV is opened in a spreadsheet, a risk known as CSV injection.
Technical details
| File name | sample-csv-1mb.csv |
|---|---|
| Format | CSV (Comma-separated values) |
| Extension | .csv |
| MIME type | text/csv |
| Size | 1,048,576 bytes (1 MB) |
| Kind | Text |
| SHA-256 | e516790c000f0caeb1c3e2db66376a06ae36f79a6975559c29010feceb8d870d |
| 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 | Spreadsheets |
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-csv-1mb.csv 'https://sampletestfiles.com/downloads/csv/sample-csv-1mb.csv'
sha256sum sample-csv-1mb.csv # Linux
shasum -a 256 sample-csv-1mb.csv # macOSOn Windows, run Get-FileHash sample-csv-1mb.csv -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 1 MB?
- Yes. It is 1,048,576 bytes, which is 1 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 1 MB CSV file?
- A header row and 7,885 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.