What is DataTray?
DataTray is a Windows app for working with messy data files locally, without uploads or accounts. It opens large CSVs, Excel workbooks, Parquet, JSON, JSONL, XML, and folders of files, then helps you explore rows, profile columns, spot data quality issues, and generate shareable reports. It also converts between formats, dedupes and merges records, cleans formatting problems, anonymizes sensitive fields, and compares files or sheets to show schema changes and row-level differences. Everything stays on your PC, so you can handle private or oversized files that are awkward or impossible to use in Excel.
Key features
- Open huge CSV, Excel, Parquet, JSON, and XML files locally.
- Profile columns, nulls, mixed types, outliers, and data quality.
- Convert, combine, or split files across many formats.
- Find duplicates, merge records, and report every removal.
- Clean messy values and anonymize personal data in one pass.
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