Case Converter
Convert text to UPPERCASE, lowercase, Title Case, or Sentence case.
Overview
This converter transforms text between common letter cases used in writing and programming. It supports sentence case, UPPER CASE, lower case, Title Case, camelCase, PascalCase, snake_case, and kebab-case. This saves time when reformatting database column names, code identifiers, headline copy, or document headings that follow different style guides.
Common use cases
- Convert variable names between camelCase and snake_case for different languages.
- Standardize heading case across a batch of document titles.
- Convert all-caps text pasted from legacy systems to readable form.
- Prepare URL slugs in kebab-case from title text.
Examples and notes
- 'user full name' becomes userFullName in camelCase, UserFullName in PascalCase, and user_full_name in snake_case.
- A blog headline in Title Case becomes 'How To Write Better Headlines'.
- Pasting legacy ALL CAPS content and applying lower case or sentence case makes it readable.
Important note
Automatic title case does not apply AP, Chicago, or APA headline rules — minor words like 'in', 'of', 'the' may still be capitalised. Review manually for editorial use.
Frequently Asked Questions
Can I convert large paragraphs at once?
Yes. Paste full paragraphs or multi-paragraph text and convert the entire block instantly.
Does title case follow AP or Chicago style?
It applies standard capitalization — first letter of each word. It does not apply language-specific style rules such as lowercasing prepositions or articles.
Can I convert variable names between coding conventions?
Use the camelCase, PascalCase, snake_case, or kebab-case options to convert identifiers between programming naming conventions.
Does sentence case handle multiple sentences?
Yes. Sentence case capitalises the first letter after each full stop, so multiple sentences in the input are each handled correctly.