Currency symbols (₹, $, €, £), thousands separators, and spaces.

Are negative numbers supported?

Yes, accounting parentheses like (1,234) become -1234.

Can I choose which columns to clean?

Yes, a column picker lets you select exactly which ones.

Strip currency symbols and formatting from numeric columns. Fast, private, and secure browser-based tool with no signups or s

Your files never leave your device. Processed locally. 100% private.

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Complete your task perfectly in just three straightforward steps.

Upload your CSV or Excel file.

First 20 rows show exactly which values will change.

Download with clean numeric values.

Everything you need to know about the Number Cleaner.

Continue working with our suite of free data utilities.

Mask or replace PII in CSV files. Replace names, emails, and phone numbers with anonymised values. The safest way to process

Extract data from CSV columns using regular expressions. Capture groups to new columns. Processed entirely in your browser fo

Remove duplicates, fix nulls, trim whitespace, and standardize formats in one pass. Fast, private, and secure browser-based t