Fake Data Generator

Generate realistic test data in seconds. Choose fields, set row count, preview as a table. Download as CSV or JSON. All in your browser.

About Fake Data Generator

Generate realistic fake data for development, testing, and demos. Choose from 12 field types including names, emails, phone numbers, addresses, UUIDs, companies, and job titles. Preview in a table and download as CSV or JSON.

12 Field Types

Generate first/last names, emails, phones, addresses, cities, countries, dates, numbers, UUIDs, companies, and job titles.

Multiple Locales

English, Spanish, German, French, and Japanese name lists for localized test data generation.

Instant Preview

See generated data in a formatted table before downloading. Verify fields and values at a glance.

100% Private

All data generated locally in your browser. No uploads, no servers, no tracking. Truly private.

📋 Common Use Cases

Pre-Analysis Data Prep

Clean CSV and spreadsheet data before analysis. Standardize formats, remove duplicates, and fix inconsistent values that would skew results.

PII Redaction

Remove or mask personally identifiable information before sharing datasets with third parties or publishing open data. Comply with privacy regulations.

Text File Parsing

Convert unstructured text files into organized columns. Extract structured data from logs, reports, or exported text dumps.

Database Cleanup

Prepare data for database import by fixing malformed records, standardizing field formats, and removing invalid characters.

🪜 How to Use This Tool

  1. Load your data
    Paste raw text or upload a file. The tool auto-detects delimiters and structure in CSV, TSV, and fixed-width formats.
  2. Choose cleaning operations
    Select what to do — remove duplicates, trim whitespace, anonymize PII, split columns, or standardize formats.
  3. Preview changes
    Review a before/after comparison of your data. Adjust cleaning rules if needed before applying to the full dataset.
  4. Download cleaned data
    Export as CSV, JSON, or copy to clipboard. Original data is never uploaded — all cleaning happens locally.

📚 Related Guides

Frequently Asked Questions

Is this data tool free?▼
Yes. All data tools are completely free. No signup needed.
Is my data sent to a server?▼
No. All data processing happens in your browser. Your JSON, CSV, SQL, and text data never leaves your device.
Can these handle large files?▼
JSON formatter and CSV tools comfortably handle files up to ~10MB in browser. Performance depends on your device for larger datasets.