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Transform text

Online case converter

Switch text between uppercase, lowercase, title, sentence, camel, snake, kebab, and constant case.

Clear rules, private processing

Built to be useful, not mysterious.

Case conversion runs entirely in your browser. Word-based developer cases remove punctuation and normalize separators for predictable identifiers.

  • Nine case styles
  • Locale-aware casing
  • One-click copy
  • Developer-friendly formats

How to use this tool

A short, repeatable workflow.

  1. Paste or type text in the Original field.
  2. Choose the required case above the editors.
  3. Review the converted output; switching modes does not overwrite the original.
  4. Copy or download the converted text.

Method and limits

Natural writing cases and developer cases follow different rules

Uppercase, lowercase, title case, and sentence case preserve readable spacing. camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE intentionally normalize punctuation and separators so the result can be used as an identifier.

Does conversion change the original text?

No. The original remains in the left editor until you replace or clear it.

Is title case a complete editorial style guide?

No. The converter capitalizes words consistently, but publication-specific rules for short articles and prepositions may differ.

Related workflow

Continue with a relevant tool.

These pages solve the next most common tasks without uploading your text.

Text CleanerFix repeated spaces, excess blank lines, smart quotes, dashes, and inconsistent line endings.Sort LinesSort lines alphabetically, naturally, numerically, by length, or reverse their current order.Remove Duplicate LinesDeduplicate a list while preserving the first occurrence and the original order.