Ever opened a spreadsheet and found Big5, Shift-JIS, 1.234,50, ROC dates, full-width characters and NULL all mixed together?
I built DataFix — a privacy-first data cleaner that runs entirely in your browser.
It now supports:
XLSX / CSV / TSV / JSON
UTF-8 / Big5 / Shift-JIS / Windows-1252
date & number normalization
full-width characters
missing values
broken / duplicate headers
multi-sheet XLSX
No file upload. Your data stays on your device.
Demo: https://datafix-tw.mickey921205.workers.dev
GitHub: https://github.com/mickey921205/datafix
Looking for weird synthetic data edge cases to break it.Could you please give it a star?
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