What does a case converter do?
It rewrites the same text into a different letter case style, such as uppercase, lowercase, title case, sentence case, camelCase, snake_case, or kebab-case.
Text utility
Case Converter
Convert text between writing styles and naming conventions in one pass. Useful for headlines, content cleanup, file naming, slugs, variables, and structured copy workflows.
Convert text into uppercase, lowercase, title case, sentence case, camelCase, PascalCase, kebab-case, and snake_case.
Conversion styles
Why a case converter is useful
Text often needs to move between contexts: a headline becomes a slug, a sentence becomes a variable, or a rough draft needs cleaner capitalization. A case converter removes that repetitive cleanup work.
This tool supports both writing-oriented formats like title case and sentence case, and developer- or structure-oriented formats like camelCase, PascalCase, kebab-case, and snake_case.
When to use each format
- Uppercase: labels, emphasis, and short UI strings.
- Lowercase: normalized plain text.
- Title or sentence case: editorial and marketing copy.
- camelCase and PascalCase: variables, identifiers, and component names.
- kebab-case and snake_case: URLs, file names, slugs, and machine-readable labels.
Common use cases
- Cleaning up headings, captions, and meta descriptions
- Turning phrases into URL slugs or structured labels
- Renaming variables and component identifiers
- Standardizing imported or pasted text before publishing
Frequently asked questions
What is the difference between title case and sentence case?
Title case capitalizes the main words in a heading, while sentence case capitalizes the start of a sentence and leaves the rest mostly lowercase.
When would I use snake_case or kebab-case?
Snake case is common in file names, database fields, and variables, while kebab case is common in URLs, CSS naming patterns, and slugs.
Can I copy the converted result directly?
Yes. The tool includes a copy action so you can move the converted output straight into your next workflow.