DataToolsLab
Generators

Mock Dataset Generator

Generate a table of mock data and export it as CSV or JSON.

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What is Mock Data?

A mock data generator for building test datasets. Choose the columns you need, set the row count, and export the result as CSV or JSON.

How it works

Each selected field is generated with a deterministic, seedable generator (or @faker-js/faker), assembled into rows, and serialized to CSV or JSON.

  1. Enter your input. Type or paste your input into the field above — the tool responds instantly.
  2. Review the result. Output updates live as you type. Everything runs entirely in your browser.
  3. Copy or download. Use the Copy button to grab the result, or Download to save it as a file.

Examples

Realistic sample

Type or paste any realistic input — the tool computes the result locally and instantly.

Common mistakes

Expecting a server round-trip

Nothing is uploaded — every tool in this category runs entirely in your browser.

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