Free Diagnostic Tool • No Login Required • No Data Stored

Is Your Certificate Data Ready for Bulk Generation?

Upload your participant list and see potential issues that often appear when generating certificates at scale.

This free diagnostic checks for common formatting problems before you generate 50+ certificates.

Upload Your Participant List

Before you generate 100+ certificates, check your participant data for common formatting issues that break bulk workflows.

Upload your Excel or CSV file. We'll analyze it for issues like extra spaces, inconsistent casing, empty fields, and special characters.

Drop your file here or click to browse

Supports CSV and Excel files (.csv, .xlsx, .xls)

Privacy First

All analysis happens in your browser. Your participant data never leaves your device. We don't store or transmit any data.

Expected File Format

Participant Name
Course/Event
Date
John Doe
Leadership Training
2024-01-15
Jane Smith
Excel Mastery
2024-01-15

Additional columns are welcome. The tool analyzes all provided data.