Fake Data Generator
Generate realistic dummy data for testing — names, emails, addresses, companies, phone numbers, and more. Export as JSON or CSV.
Pick fields
Fake Data Generator runs 100% in your browser
Your files are never uploaded to any server. All processing happens locally on your device using modern browser technology. Private, fast, and free.
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How to Generate Realistic Test Data for Development and QA
Open the Fake Data Generator
Navigate to the tool. No signup, nothing to install.
Pick the fields you need
Tap the fields you want — names, emails, addresses, phones, companies, credit cards, UUIDs. Selected fields highlight in blue.
Set row count and format
Choose how many rows (1–1000), then output format: Table for preview, JSON for code, CSV for spreadsheets.
Generate, copy, or download
Hit Generate. Use Copy for clipboard or Download to save the file. Use the rows directly in your tests or fixtures.
Pro Tips
- •Credit card numbers pass the Luhn checksum but are NOT real cards — safe to use in test forms, will fail at real payment gateways.
- •Emails look real but use generic test domains so you cannot accidentally email a real person from your test environment.
- •For database seeding, the JSON output drops straight into a seed file or migration. The CSV works with most spreadsheet imports.
- •Do not use generated fake data in production user-facing copy — it is for testing, mockups, and demos only.
- •Need 10,000+ rows? Use the faker library directly in your test setup — generation in the browser is capped at 1000 for UX.
Who needs Fake Data Generator?
Students
Academic work and assignments
Professionals
Business and office tasks
Creatives
Design and content creation
Everyone
Personal everyday tasks
When to Use Fake Data Generator
Database seeding
Generate JSON fixtures or CSV imports for populating dev and staging databases with realistic but fake data.
QA and UX testing
Test how your UI handles 100+ users with varying name lengths, international addresses, and realistic email formats.
Demo environments
Populate sales demos and pitch decks with realistic-looking customer data without using real customer PII.
Load testing scripts
Generate input data for k6, Locust, or other load-testing tools that send synthetic traffic to your APIs.
Frequently Asked Questions
Is the generated data real?
No. All names, emails, addresses, and other identifiable fields are randomly generated and do not correspond to real people. The structure is realistic; the content is fabricated.
Can I use the credit cards in real payments?
No. The numbers pass Luhn validation (basic credit-card check), but they are not associated with any real account and will fail at any payment processor.
What if I need a custom field type?
Open a feature request — we add fields based on demand. The underlying library (Faker.js) supports dozens of types; we expose the most-requested ones.
Is the data deterministic?
No, each generation is fresh and random. Hit Generate again for a different set. If you need deterministic data, use Faker.js directly in your code with a seed.
Does the data leave my browser?
No — generation happens locally using Faker.js. Generated rows are downloaded directly from your browser to your device.
Fake Data Generator vs Alternatives
Test data generation has several options depending on whether you are in code, a CLI, or a browser.
Faker.js / faker-py / equivalent
Native test data libraries
Key difference: Powerful for generating data inside test code, but requires writing code. Slower for ad-hoc needs.
Mockaroo
Cloud-based test data service
Key difference: Excellent but requires account, free tier limited to 1000 rows and 5 schemas, sends your schema config to their servers.
Excel / Google Sheets formulas
Spreadsheet-based random data
Key difference: Works for small amounts but limited to what RAND() and INDEX() can do — hard to generate realistic names or addresses.
Browser-side generation with no account, choice of 16 field types, JSON / CSV / table output, no upload limits or schema caps.
Good to know
- All processing happens in your browser. Very large files may be slower on mobile devices or older computers.
- Results depend on the quality and format of your input. For best results, use high-quality source files.
- Once you close the browser tab, all data is gone. Make sure to download your results before closing.
Key Features
100% Free
No hidden fees, no premium tiers, no limits on how much you use it. Free today, free tomorrow, free forever.
Complete Privacy
Your files never leave your device. Everything is processed locally in your browser — we physically cannot access your data.
No Registration
Start using the tool immediately. No account, no email, no personal information required. Just open and use.
Works Everywhere
Compatible with Chrome, Firefox, Safari, and Edge on desktop and mobile. Works offline once the page has loaded.
Full Step-by-Step Guide
Detailed walkthrough with pro tips and best practices for getting the best results every time.
Read guideFrequently Asked Questions
Every common question answered — file limits, privacy, supported formats, compatibility, and more.
View FAQCompare Alternatives
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