It is designed for real editing work rather than simple capitalisation. Title case follows the common convention of leaving short words such as "of" and "the" lower case, while sentence case fixes capitalisation after full stops without touching proper nouns you have already written. Developers can generate clean identifiers and URL slugs in the same place.
Calculator
How to use the Case Converter
- Paste the text you want to convert.
- Choose the target case from the drop-down.
- Copy the converted result with the Copy button.
- Switch styles to compare outputs without re-pasting.
About this tool
The Case Converter is built for speed and accuracy: every calculation runs in your browser, so your data never leaves your device and the result updates as you type. It works equally well on a phone, a tablet or a desktop, and it is free to use as many times as you like.
Common use cases
- Formatting headlines and email subject lines.
- Creating URL slugs from page titles.
- Generating camelCase or snake_case identifiers.
- Fixing text pasted from ALL-CAPS sources.
Tips for the best result
- Use the latest figures you have - even a small change in rate or term can shift the outcome by hundreds.
- For annual figures, divide by 12 to get a monthly number you can compare with the result.
- Bookmark this page and revisit the calculation as the inputs change.
Frequently asked questions
Which title case rules are used?
The common editorial convention: capitalise major words and leave short conjunctions, articles and prepositions lower case, except at the start of the text.
Will it change numbers or punctuation?
Identifier styles (camel, pascal, snake, kebab) strip punctuation because identifiers cannot contain it. Letter-case styles leave punctuation untouched.
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