Data Checker
Validate your data manually, row by row. Mark each entry as valid or invalid, add comments, and export your review.
Enter one item per line. Each line becomes one item to check.
Ready to Check
Enter your data above — one item per line. Then review each item one by one, marking it as valid or invalid.
Manual Data Validation
Row-by-Row Review | Check each data entry individually, marking it as valid or invalid with a single click.
Keyboard Shortcuts | Speed through your data using keyboard shortcuts — V for valid, X for invalid, arrows to navigate.
Add Comments | Leave notes on problematic rows explaining what's wrong for your team or future reference.
Import & Export
Multiple Formats | Import data from CSV, TSV, or any delimited format. Paste directly or upload a file.
Export Results | Download your review as a CSV file with status and comment columns appended to each row.
Progress Tracking | See your review progress at a glance with visual indicators showing how many rows you've checked.
Common Use Cases
- •Verify imported customer data before processing
- •Review survey responses for completeness
- •Check product listings for missing information
- •Validate employee records during audits
- •Review transaction data for anomalies
- •Quality check data migration results