Excel Cleaner / Normalizer
World-class data cleaning: fuzzy dedupe, column profiling, date and type normalization, whitespace and case fixes, and more. Clean messy Excel files for analysis, BI tools, and data pipelines.
How it works: Upload your messy Excel file → review workbook stats + column profiling → choose cleaning options (19 features!) → preview updates live → download your clean, normalized file. Privacy first: Everything runs in your browser – your files never leave your device.
Benchmark Performance
Real-world tested, production-ready
33K rows/sec (analysis)
Up to ~20 MB
8 issue types
View full benchmarks →