Data Generator

About the Data Generator

The Data Generator is a powerful tool for creating realistic sample data for testing, development, and prototyping. Whether you're building APIs, testing databases, or creating mockups, this tool helps you generate structured data in multiple formats with customizable schemas and realistic field types.

✨ Key Features

• Visual Schema Builder - Drag-and-drop interface to define data structure
• 25+ Field Types - Names, emails, addresses, dates, UUIDs, and more
• Multiple Output Formats - JSON, CSV, and SQL with customizable options
• Pre-built Templates - Users, products, orders, employees, events, and blog posts
• Advanced Constraints - Min/max values, string lengths, date ranges, and patterns
• Data Relationships - Unique fields and foreign key constraints
• Export/Import - Save and share schema configurations
• Performance Optimized - Generate up to 10,000 records efficiently

🎯 Perfect For

• Developers - Testing APIs, databases, and applications
• QA Engineers - Creating test datasets for various scenarios
• Data Analysts - Generating sample data for analysis and reporting
• Students - Learning database design and data manipulation
• Prototypers - Creating realistic mockups with sample data
• Designers - Populating UI designs with realistic content

📊 Supported Field Types

Text & Names

• Text strings
• Person names
• Email addresses
• Usernames
• Lorem ipsum

Numbers & Dates

• Integers
• Decimals
• Currency
• Percentages
• Dates & timestamps

Geography & Web

• Addresses
• Countries & cities
• Coordinates
• URLs & domains
• IP addresses

Special Types

• UUIDs
• Phone numbers
• Credit cards (test)
• Boolean values
• Custom regex patterns

🚀 How to Use

Start with a Template - Choose from pre-built schemas or create your own
Define Your Schema - Add fields, set types, and configure constraints
Set Generation Options - Choose record count and output format (JSON/CSV/SQL)
Configure Output - Customize format-specific options like delimiters or SQL dialect
Generate Data - Click generate to create your sample data
Export Results - Copy to clipboard or download as a file

📄 JSON Output

Generate clean, formatted JSON arrays or objects with customizable property naming conventions (camelCase, snake_case, kebab-case).

📊 CSV Output

Export to CSV with configurable delimiters, header rows, and quote styles. Perfect for spreadsheet applications.

🗄️ SQL Output

Generate CREATE TABLE and INSERT statements for MySQL, PostgreSQL, SQLite, and SQL Server with proper data types.

💡 Pro Tips

• Use unique constraints sparingly for large datasets
• Set realistic field constraints to improve data quality
• Export schemas to reuse configurations across projects
• Test with small record counts first, then scale up
• Use enum fields for consistent categorical data
• Leverage templates as starting points for custom schemas

🔒 All data generation happens locally in your browser. No data is sent to external servers.

⚡ Optimized for performance with chunked generation and memory management.

Schema Validation Errors