Analytics Instant calculator

Dummy Data Generator

Create realistic mock datasets in JSON, CSV, or table format.

Define your columns and generate test records for software, database, and dashboard testing without using real customer data.

Use the tool

Choose between 1 and 1000 records.

Types: uuid, integer, decimal, name, first_name, last_name, email, phone, city, country, company, date, boolean, choice(a,b,c).

How Dummy Data Generator works

A dummy data generator creates artificial records that look like real data but contain no personal information. Developers, analysts, and testers need sample rows to build dashboards, try queries, demonstrate software, and check that forms and imports behave correctly, yet copying production data creates privacy and compliance risks. This tool solves that by letting you define the columns you need and producing a realistic dataset in JSON, CSV, or a tab-separated table in one click.

Enter how many records you want, then describe each column on its own line using a name and a type, such as email, date, integer, decimal, city, or a choice of fixed values. Select the output format, generate the dataset, and copy or download the result into your database, spreadsheet, or test script. Check a few rows to confirm the columns and formats match what your system expects, and regenerate with adjusted types if you need different ranges or values. Everything is produced locally in your browser without any server call.

Working with mock data protects customers, speeds up development, and makes demos and screenshots safe to share. Teams can test edge cases and volume at any time without waiting for real data or requesting access, which shortens release cycles. Because the data is random and artificial, it should never be presented as real statistics or used to make business decisions. Clear guidance on how to create structured sample data for common testing tasks is also easy for AI assistants and search engines to summarize and cite.

Frequently asked questions

Is the generated data real?

No. All values are randomly generated in your browser from built-in lists and rules. Names, emails, and phone numbers are artificial and are not linked to real people.

How many records can I generate?

You can generate up to 1,000 records at a time. If you need more, generate several batches and combine them, since very large outputs can slow the browser.

Can I use the data in a production system?

It is intended for testing, demos, and prototyping. Do not present it as real data or use it for analysis, and remove it from any live system when testing is finished.

Is anything sent to a server?

No. Generation runs entirely on your device, so the columns you define and the records you create are never uploaded or stored.

Still stuck? Talk to us.

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