Regional formats, one clean output
Convert European and US number styles, international dates, full-width characters and legacy encodings into portable data.
●Your data never leaves this browser
LOCAL-FIRST · CROSS-FORMAT DATA CLEANER
Messy datacleaned in one click.
Clean XLSX, CSV, TSV and JSON files from different regions without uploading sensitive data. Handle multiple encodings, date formats, number formats, whitespace and missing values in one pass.
XLSXCSVTSVJSONUTF-8BIG5SHIFT-JISWIN-1252
Drop a data file here
XLSX, CSV, TSV, JSON or TXT · up to 10 MB / 50,000 rows
ONE TOOL · MANY REGIONS
Built for the files people actually exchange.
Review every transformation
Compare original and cleaned values, see exactly what changed, and choose only the rules you trust.
Private, fast and open-source ready
Everything runs in your browser. No account, no upload queue, and no sensitive spreadsheet sent to a server.