Tools › Text Case Converter
Text Case Converter
Convert text case online: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE.
Use it from code
The same function is available as an API endpoint. Free tier: 100 calls per day without a key. Pro lifts the limit.
curl -X POST https://spincrus.uz/api/v1/tools/case-converter \
-H "content-type: application/json" \
-H "x-api-key: YOUR_KEY" \
-d '{"text":"The quick brown fox","style":"snake"}'FAQ
What is the difference between camelCase and PascalCase?
Both join words without separators and capitalise each word. camelCase starts with a lowercase letter (userProfileId), PascalCase starts with an uppercase letter (UserProfileId). JavaScript variables usually use camelCase; class and type names use PascalCase.
How does the converter split words for snake_case and kebab-case?
It breaks on spaces, punctuation, underscores, hyphens and camelCase boundaries, so "userProfileId", "user-profile-id" and "User Profile Id" all become the same words. Digits stay attached to their word.
Does Title Case follow style-guide rules for small words?
No. It capitalises the first letter of every word. Style guides such as APA or Chicago keep short words like "a", "of" and "the" lowercase, so review the result if you need strict editorial style.
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