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Sample CSV file

Create sample CSV files with configurable row and column counts: 1 to 100,000 rows, 1 to 100 columns. Via the web form only, no signup. For tests, import checks, and development.

Go to CSV generator

What is a sample CSV file?

A sample CSV file contains synthetic data in rows and columns – no real personal or production data. Developers and QA use it to test CSV imports, validate parsers, or simulate edge cases (many rows, many columns).

dummyfiles.dev generates such files on demand: you set the number of rows (1 to 100,000), columns (1 to 100), and optionally a delimiter. Download as CSV via the web form.

Features

Rows: 1 to 100,000.

Columns: 1 to 100.

Format: CSV with configurable delimiter (comma, semicolon, tab).

Content: Placeholder text per cell, suited for import and parser tests.

Use cases

Test CSV import in applications
Validate parsers and validation logic
Test performance with large files
Automated tests/pipelines: generate repeatable test data
Simulate edge cases (many columns, long lines)

Highlights

Up to 100,000 rows, up to 100 columns
No registration
Use via the website
Optional filename for download

FAQ

How do I create a sample CSV file?: On the homepage open the “CSV” tab, set rows and columns, click “Create file”. Use the matching tab on the homepage.
Which delimiters are supported?: Comma, semicolon, and tab – depending on the setting.
Can I use real data?: No. Only placeholder text is generated – for tests without real data.
How large can the file be?: Maximum 100,000 rows × 100 columns. Actual file size depends on content.
Is this suitable for automated tests?: Fixed settings in the form yield reproducible CSV files.

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