データファイルのクリーニング - 無料デスクトップアプリ

Diwadi supports: remove duplicates, filter rows (by conditions), extract specific columns, trim whitespace, fix text casing, remove empty rows, standardize dates, convert data types, search and replace, and format conversion. All operations work on files of any size.

Diwadi handles unlimited rows (Excel maxes at 1M), processes 10-100x faster, works offline with no upload, keeps data 100% private, and supports advanced operations that Excel can't handle on large files.

Yes! Diwadi handles CSV files with billions of rows. Clean 10M, 50M, or 100M+ row files that Excel can't even open. Perfect for database exports, log files, and enterprise datasets.

For most users, yes! Diwadi provides the same core data cleaning features as Alteryx (remove duplicates, filter, clean, convert) but is free and simpler to use. Alteryx costs $5,195-50,000/year and is complex for simple tasks.

Clean CSV, Excel (XLSX/XLS), Parquet, TSV, and JSON files. You can also convert between formats during the cleaning process. For best performance with large files, use Parquet.

Yes! Select folders and apply the same cleaning operations to hundreds of files at once. Each file is cleaned separately with a detailed report. Perfect for cleaning entire databases or data warehouses.

No! Diwadi always creates new cleaned files, leaving your originals untouched. You'll get a detailed report of what was cleaned in each file.

Completely free with unlimited files and rows. No file size limits, no watermarks, no credit card required.