CONSTANT_CASE Converter
Paste text or variable names and get CONSTANT_CASE instantly.
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How it works
Words are uppercased and joined with underscores: max retry count → MAX_RETRY_COUNT. Used for constants and environment variables.
FAQ
What does it do with existing camelCase or snake_case?
Word boundaries are detected from capital letters, underscores, hyphens, dots and spaces, so userID, user_id and user-id all become the same words before being written in CONSTANT_CASE.