Case Converter
Free online case converter. Paste text and instantly convert it to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, or kebab-case.
Changing the case of text by hand is tedious and error-prone, especially across a long paragraph or a list of values. This case converter rewrites your text in place with a single click — pick UPPERCASE for headers, lowercase to normalize input, Title Case for headlines, or Sentence case to clean up text that was shouted in all caps.
It also handles programmer-friendly formats: camelCase, snake_case, and kebab-case are perfect for variable names, slugs, file names, and CSS classes. Convert as many times as you like, then hit Copy to grab the result. Everything runs in your browser, so your text stays private.
Frequently asked questions
What's the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word, like a headline. Sentence case capitalizes only the first letter of each sentence, like normal prose.
How do camelCase, snake_case, and kebab-case work?
They join words without spaces: camelCase capitalizes each word after the first, snake_case separates words with underscores, and kebab-case separates them with hyphens — all useful for code and URLs.
Can I convert the same text multiple times?
Yes. Each button transforms the current contents of the box, so you can chain conversions or switch formats freely until you copy the result.
Is my text sent anywhere?
No. All conversions happen locally in your browser and nothing is uploaded.
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