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pascalcasesnakecase

PascalCase to snake_case Converter

Convert PascalCase text to snake_case — one line or a whole list at once.

To convert PascalCase to snake_case, paste your text above and the result updates as you type. UserAccountId becomes user_account_id. Word boundaries are detected from the existing casing, so an identifier does not need separators to be split correctly. snake_case is standard in Python, Ruby and SQL, where identifiers are frequently case-insensitive and underscores survive where capitals do not.

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About converting PASCALCASE to SNAKECASE

PascalCase names types, classes and React components — the leading capital is what distinguishes a component from an element in JSX. snake_case is standard in Python, Ruby and SQL, where identifiers are frequently case-insensitive and underscores survive where capitals do not. Converting PascalCase to snake_case turns UserAccountId into user_account_id; acronyms are the awkward case in every direction, since "userID" and "userId" split differently and only one of them round-trips.

Convert SNAKECASE to PASCALCASE insteadOpen the full Case Converter

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