Is the generated data real?

No. Every name, email, phone number and address is entirely fictional, assembled from word banks — none of it belongs to a real person.

Why is it called deterministic?

The generator uses a seeded pseudo-random algorithm, so the same seed always produces the exact same rows. Click Regenerate to advance the seed and get a new repeatable set.

Yes. All records are generated locally in your browser — nothing is uploaded or stored on any server.

How many rows can I generate?

Up to 200 rows per run. Set the count and the table, JSON or CSV updates immediately; click Regenerate to advance the seed for a fresh, repeatable batch.

What format are the email addresses and phone numbers?

Emails follow firstname.lastname @ using safe placeholder domains like example.com and mail.test. Phone numbers use the US format (area) prefix-line, e.g. (415) 555-0142.

Can I safely use this data in a public demo?

Yes. Every name, email, phone number and address is assembled from fixed word banks and reserved test domains, so it matches no real person and is safe for demos, screenshots and shared fixtures.

Will I get the same data next time?

Yes, if you keep the same seed. The generator is deterministic, so the same seed and row count always reproduce identical records — ideal for stable, reviewable test fixtures.

Fake Data Generator — Gera Tools

Fake Data Generator

Developers and QA testers constantly need believable-but-fake records to seed a database, populate a UI demo, or build test fixtures — without exposing real personal data. This tool generates fictional names, emails, phone numbers and addresses and lets you export them as a table, JSON or CSV, all in the browser.

How it works

Each run is driven by a Mulberry32 seeded pseudo-random number generator. The seed produces a deterministic stream of numbers, which the tool uses to pick values from fixed word banks: first and last names, street names and types, cities, US state codes and reserved test domains (example.com, mail.test and similar). It assembles an email as firstname.lastname<number>@domain, a US-style phone number (area) prefix-line, and a full street address with a ZIP code. Because everything flows from the seed, the same seed always reproduces the same rows — clicking Regenerate advances the seed for a fresh, repeatable set.

Example

With the default seed and a row count of 3 you might get output like:

Name	Email	Phone	Address
Olivia Smith	[email protected]	(415) 738-2901	84 Maple St, Springfield, CA 94107
Liam Johnson	[email protected]	(628) 201-5567	1203 Oak Ave, Riverton, TX 73019
Emma Davis	[email protected]	(917) 460-8842	56 Cedar Rd, Fairview, NY 10025

Switch the format selector to JSON or CSV to copy the same records ready for a seed script or spreadsheet import.

Every value is fictional and generated entirely in your browser — nothing is uploaded.