Fake data generator
Generate realistic JSON arrays for prototyping APIs, seeding databases, or testing UI tables. Same seed always produces the same data.
Everything runs in your browser — generated data never leaves this page.
Entity type
Fields
JSON output
Avatar URLs use the ui-avatars.com path format as a placeholder string — no external request is made from this tool. Use the seed to get identical output across refreshes or share a URL with the same query params.
About this tool
Fake data lets you build and test UIs before the real API exists. Names, emails, prices, and dates look plausible enough for screenshots and demos — they are not real people or records.
A seeded pseudo-random number generator (mulberry32) makes output reproducible: same entity, count, seed, and field selection always produces the same JSON. Change the seed to shuffle everything.
Uncheck fields you do not need to slim down fixtures for unit tests or GraphQL query mocks.