Spin up realistic test data for your app, spreadsheet or demo — pick your fields, set the rows, export CSV or JSON. Generated on your device.
🔒 Generated locally with your browser’s crypto RNG — nothing is sent anywhere.
Mock Data Generator is a free, private generators tool that runs entirely in your web browser. Generate realistic fake names, emails & rows — export CSV/JSON. Because everything happens locally on your device, your files and data are never uploaded to a server, there is no sign-up or installation required, and it keeps working offline. It is handy for mock data, fake data, test data, csv. Like every HeroTool by Digital Heroes, Mock Data Generator is 100% free with no limits.
Yes — Mock Data Generator is completely free for everyone. No sign-up, no account and no usage limits.
No. Mock Data Generator runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.
Yes. HeroTools is a Progressive Web App — once the page has loaded it keeps working offline, and you can install it as an app from your browser.
No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.
Generate realistic fake names, emails & rows — export CSV/JSON.