About the Case Converter
Accidentally typed a paragraph with Caps Lock on? Need a headline in proper title case, or a variable name in camelCase? This case converter rewrites your text in any of twelve styles instantly. It keeps your line breaks and punctuation exactly as they are, and you can apply several conversions one after another before copying or downloading the result.
How to use the Case Converter
- Paste or type your text into the box.
- Click a case button, such as "Sentence case" or "Title Case". The text changes immediately.
- Click another button if you want a different style — there is no need to paste again.
- Press "Copy text" to copy the result to your clipboard, or download it as a .txt file.
The different cases explained
Each style has a common use:
- Sentence case – first letter of each sentence capitalised. Best for normal writing and fixing Caps Lock text.
- Title Case – major words capitalised, short words like "of", "and" and "the" kept lower case unless they are first or last. Used for headlines and book titles.
- Capitalized Case – every word starts with a capital letter.
- UPPER CASE and lower case – all capitals or no capitals.
- camelCase and PascalCase – used for variable, function and class names in JavaScript, Java and C#.
- snake_case and CONSTANT_CASE – common in Python, databases and environment variables.
- kebab-case – used in URLs and CSS class names.
A note on title case rules
Style guides such as AP, Chicago and APA disagree on a few small words. This tool follows the widely used approach of keeping short articles, conjunctions and prepositions lower case in the middle of a title. Always check proper nouns and acronyms (for example "NASA" or "iPhone") after converting, because a converter cannot know which words are names.
Examples
Headline
"the lord of the rings" → "The Lord of the Rings".
Caps Lock fix
"HELLO THERE. HOW ARE YOU?" → "Hello there. How are you?"
Code
"user first name" → userFirstName (camelCase) or user_first_name (snake_case).
Frequently asked questions
Will it keep my line breaks?
Yes. Only letter case changes for the text styles. Programming styles (camelCase, snake_case, kebab-case) join words together, so they are best used on short phrases.
Why did a name or acronym change?
Converters apply rules to every word and cannot know which words are names. Fix proper nouns and acronyms by hand after converting.
Is there a length limit?
No fixed limit. Very long documents (hundreds of pages) may take a moment, because everything runs in your browser.
About the author: Ahmed Bilal
Ahmed Bilal is the founder of VolexTool and builds and maintains every calculator on the site. Tax rates and thresholds are taken directly from official sources such as GOV.UK, HMRC, the Canada Revenue Agency and the Australian Taxation Office, the formula is shown on every page, and each update must pass more than 600 automated checks before it goes live. Ahmed is not a tax adviser: for decisions about your own situation, speak to a qualified accountant or financial adviser.