Convert CSV Text Case - Change to Uppercase, Lowercase, Title Case

Convert text case in CSV files. Change to uppercase, lowercase, or title case. Free CSV case converter. 100% private client-side processing.

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Case Converter

Fix capitalization (e.g., convert to Title Case).

How to Case Converter

  1. 1Upload your CSV file
  2. 2Choose case type: UPPERCASE, lowercase, or Title Case
  3. 3Download transformed CSV file

Why Use This Tool?

  • Three Case Options - Upper, lower, or title case
  • All Columns - Converts text in every column
  • Preserve Numbers - Only affects text, not numbers
  • Fast Processing - Transform thousands of rows instantly
  • Memory Efficient - Streaming for large files

Frequently Asked Questions

What is title case?

Title case capitalizes the first letter of each word. For example, "john doe" becomes "John Doe".

Are numbers affected?

No, only text values are converted. Numbers, dates, and special characters remain unchanged.

Can I convert specific columns only?

Currently, all columns are converted. Use Column Manager first to isolate specific columns if needed.