JSON Formatter & Validator (Beautify, Minify & Validate)
Beautify messy JSON payloads, validate syntax errors with exact line/column indicators, and minify for production.
Open ToolGenerate synthetic mock records and dummy datasets for software QA, database testing, and form filling workflows.
Click "Generate Test Records" above to preview realistic mock data here.

Bridge generated mock profiles directly into web forms, ERP systems, and QA staging pipelines without manual copy-paste.
Choose how many rows you need: 10, 50, 100, 500, or 1000 records.
Check the boxes for the fields you want: Full Name, Username, Password, Email, Phone, Address, City, Zip, Company, UUID, or DOB.
Click Generate Data to preview records in the table, then export to CSV or JSON with one click.
Choose the ideal export format for your software development, database seeding, or form automation workflow:
| Data Format | Standard Specification | Primary QA & Automation Use Case |
|---|---|---|
| RFC-4180 CSV | Comma-separated values with UTF-8 encoding | Excel / Google Sheets bulk import, CRM mass record uploads, and RunMacro Form Autofill loops. |
| Formatted JSON | Structured array of JSON objects | REST API payload testing (Postman, Thunder Client), frontend state mocking, and MongoDB seeding. |
| UUID v4 & Hashes | RFC 4122 compliant 128-bit identifiers | Database primary key testing, multi-tenant isolation verification, and session token simulation. |
Includes Usernames, secure test Passwords, Full Names, RFC-compliant test emails, phone numbers, addresses, companies, UUIDs, and birthdates.
Generates up to 1,000 complete records in under 50 milliseconds directly in browser memory.
Exports valid CSV files with proper escaping and beautiful indented JSON files ready for REST APIs.
Browse generated records directly in a clean, scrollable dark theme table before exporting.
Clear answers about using this tool and automating workflows with RunMacro.
No. All generated email addresses use reserved testing domains (such as @example.com) to prevent unintended email delivery and strictly comply with privacy standards.
Yes, clicking the "Export CSV" button downloads a standard RFC-4180 CSV file that opens seamlessly in Microsoft Excel, Google Sheets, or Apple Numbers.
You can export the generated test dataset as CSV, then use RunMacro Form Autofill to automatically map columns to form fields and auto-submit thousands of entries in Google Forms, web portals, or internal ERPs.
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