Generate test data for a country

Build a synthetic profile with names, addresses and phone numbers in a country's own format, and batch or export it.

You have a synthetic test profile formatted for the country you chose, ready to use or export.

Before you begin

It generates names, email addresses, phone numbers, addresses and passwords, formatted for the country you pick.
It does NOT create personal government identity numbers, payment card numbers or bank account numbers. You enter such a value yourself and the app checks its format on the device, including the check digit — checking only, never producing.
It DOES create company registration numbers such as EIN and CNPJ, and universal identifiers (UUID, GUID, ULID) which are added for every country. Those are not personal identifiers.
Everything it generates is synthetic test data. It is not real personal information about anybody.

Open Data Hub from the App Hub.
Create a profile and choose the country you are testing for. The fields follow that country's own conventions — diacritics in names, the local address shape, a plausible phone number.
Tap the eye icon beside a sensitive field, such as the password, to hide its value before you screenshot anything.

Generate up to 50 profiles in one pass when you need a set rather than a single record. The Batch Generate card offers 10, 20 or 50.
Export with the download icon in the top right, to JSON, CSV, XML or TSV. Export is a Data Hub action, not a batch-only one.
An export always carries a Government IDs and a Financial IDs column. For batch rows those hold the company registration and universal identifiers; if you typed a card or account number into a profile yourself, the export contains it in full. Check the file before you share it.

Set Test Nexus as your device autofill service: tap Open Autofill Settings and confirm. Android lists it as "Autofill with TestNexus".
Long-press a profile and choose Set as Favorite. Autofill uses only the favourite, so one must be marked.
Open any app with a form and tap a field. A suggestion labelled "Fill with Test Nexus" appears; tap it to fill the matching fields.

For a profile, pick the birth country first — that is what enables country-specific generation. A company needs no country.
Open the profile, company or saved form in Data Hub and tap the Auto fill button in the bottom-right corner. Test Nexus fills the fields with synthetic values in one pass.
Government ID, payment card and bank account numbers are not values Test Nexus produces — enter your own for those fields.
This path uses AI, so on top of the Silver subscription Data Hub already needs, it draws on a daily AI token budget.
Use the Form Builder to save reusable templates for card, bank and custom fields.

Open the profile you just made, then create a second one for a different country and compare: the address fields change shape and the phone number takes the other country's dialling format.
For autofill, open a form in another app and tap a field — the "Fill with Test Nexus" suggestion appears only once a favourite profile is set.