Convert text case online
Switch between uppercase, lowercase, title case and developer-friendly formats. Transform your text in one click.
From open to done.
Choose your input
Paste or type your text.
Make it yours
Choose the capitalization or identifier style you need.
Take it with you
Copy the converted result or download it as a text file.
Get a better result.
Title case capitalizes each word rather than applying a publication’s style guide. Sentence case uses punctuation as a boundary. Identifier formats remove separators and combine words, so review abbreviations and proper names after transforming.
The phrase hello useful world becomes helloUsefulWorld in camelCase, hello_useful_world in snake_case, and HELLO_USEFUL_WORLD in CONSTANT_CASE.
Made for your everyday work
Processed entirely on your device
Free to use, with no signup
Copy or download your result
Works in a modern browser
When this helps
Normalize headings, tidy a pasted paragraph, or prepare variable and filename conventions. Case conversion cannot infer every proper noun or brand capitalization.
A little more clarity.
What to know before you go.
Which styles are available?
Uppercase, lowercase, title, sentence, camel, Pascal, snake, kebab, constant, and alternating case.
Does Title Case follow editorial rules?
It capitalizes the first letter of each word. It does not apply exceptions for articles or prepositions.
Will punctuation be kept?
Regular case changes preserve punctuation. Identifier styles convert word boundaries into separators or remove them.
Can I restore the original?
The input stays separate from the output, so you can choose another mode at any time.
Your next useful thing.
Word Counter
Count words, characters, sentences and paragraphs as you type.
Text toolRemove Duplicate Lines
Turn a messy list into unique lines.
Text toolText Diff Checker
Compare two versions of text with clear word-level changes.
Text toolBase64 Encode / Decode
Convert UTF-8 text or files to Base64, and decode them back.
Developer tool