Clean Clinical Research Data Without Uploading Participant Info
Fix data quality issues in research datasets — participant identifiers never leave your computer.
Research participant data stays on your secured system
HIPAA-safe: PHI never leaves your workstation
Free preview • $3 to download cleaned file
Sound familiar?
Multi-site study data has inconsistent date formats that prevent merging
Participant IDs have leading/trailing spaces causing join failures in your analysis
You can't run statistical analysis until the data from all sites is in a consistent format
Why Clinical Research Data Managers choose browser-based cleaning
You're combining data from a multi-site study for analysis. Site A recorded dates as MM/DD/YYYY, Site B uses DD/MM/YYYY, and Site C has free-text dates like "Jan 5, 2024". Your R or Python scripts break because the formats don't match. You can't upload participant names and MRNs to online tools — that would violate HIPAA. CSVCleaner standardizes all dates locally so you can merge the datasets and run your analysis.
Your data never leaves your computer
All processing happens in your browser
No cloud uploads required
Unlike AI tools that need your data
Works offline after loading
No internet needed to process files
No account or login needed
Just upload and clean
What you can fix
Cross-Site Standardization
Harmonize date formats from multiple data sources.
ID Field Cleanup
Trim whitespace and standardize participant identifiers.
Analysis-Ready Output
Produce clean data your statistical software can process.
Audit Documentation
Know exactly what was changed for reproducibility.
Ready to clean your data?
Preview for free. See exactly what will be fixed before you pay. Your data stays in your browser the entire time.
Clean Your Research Data