Letter Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case and more — instantly.

Case style

01Input

02Output

This tool runs entirely in your browser. Your input is never uploaded.

How to use

What is Title Case?

Every major word is capitalized while short articles, prepositions and conjunctions stay lowercase — the style used in English headlines and titles.

Is my text uploaded?

No. Everything runs locally in your browser and nothing is stored after you close the page.

Remove duplicate lines instantly, with options for case, whitespace and empty lines.

Batch find and replace text, with regex and case-sensitive options.

Reverse characters, flip line order, sort lines alphabetically, or shuffle them.

Number each line with a custom start, prefix, separator and zero padding.