How to use the Case Converter
- Type or paste your text into the box.
- Click the case you want, for example lowercase to turn capital letters into small letters.
- Click Undo if you want to go back one step.
- Press Copy or Download to use your converted text.
Features
- Eleven case styles: lowercase, UPPERCASE, Sentence case, Title Case, aLtErNaTiNg, iNVERSE, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE.
- Fixes text typed with Caps Lock on by turning it into lowercase or sentence case.
- Converts each line separately, so lists of names or keywords stay in order.
- Live character and word count, undo, copy and download.
When to use each case
- lowercase – clean up text that was typed in capitals, or prepare keywords.
- UPPERCASE – headings, labels and emphasis.
- Sentence case – normal paragraphs where only the first word of each sentence is capitalized.
- Title Case – headlines and article titles.
- camelCase, snake_case, kebab-case – variable names, file names and URL slugs.
Frequently Asked Questions
How do I convert uppercase to lowercase?
Paste your text in the box and click the lowercase button. Every capital letter turns into a small letter.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the main words of a headline. Sentence case capitalizes only the first word of each sentence and proper “I”.
Does Title Case follow style guides?
It capitalizes major words and keeps small words such as “and”, “of” and “the” in lowercase unless they come first or last. Style guides differ, so check the result for important headlines.
Will it change numbers or symbols?
No. Only letters change. Numbers, punctuation and emoji stay as they are.
Is my text stored anywhere?
No. The conversion runs in your browser and nothing is uploaded.