What modes are available?

UPPERCASE, lowercase, Title, and Sentence.

No. Everything is processed locally in your browser.

Process files up to the browser memory limit.

Can I apply different modes per column?

Yes, each column can have its own case mode.

Yes, Unicode and accented characters are handled correctly.

Standardize text case across CSV columns — UPPER, lower, Title, or Sentence case. Securely process files in your browser memo

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

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Complete your task perfectly in just three straightforward steps.

Drop your CSV file into the upload area.

Select columns and the case mode: UPPERCASE, lowercase, Title, or Sentence.

Download the CSV with the standardized letter case.

Everything you need to know about the Case Standardizer.

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