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 or via API.

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
• GET API
• 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”. Or call the API.

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?

Yes. The API can be called with fixed parameters and returns reproducible CSV files.

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