Case Conversion Online
Clean up text casing for titles, paragraphs, URLs, filenames, and code identifiers.
Convert lowercase, uppercase, and naming cases
Paste text and choose UPPERCASE, lowercase, Title Case, or Sentence case for writing. Use camelCase, PascalCase, snake_case, or kebab-case for identifiers and filenames. Review acronyms, proper names, apostrophes, punctuation, and sentence boundaries because automatic case conversion cannot understand every context.
The transformation runs locally and changes only the text in the output. It does not edit a Word document, preserve rich-text formatting, or enforce a programming language's identifier rules.
How to Use Free Case Converter
Case Converter cleans real titles, labels, filenames, and pasted text where capitalization needs to match a style rule.
- Paste the actual copy so acronyms, brand names, code terms, and sentence breaks are visible during review.
- Choose the case mode for the final destination, whether that is a heading, slug, label, or plain sentence.
- Convert once, then scan the changed words for names, abbreviations, and product terms that need manual casing.
- Automatic title or sentence case can mishandle acronyms, initials, and brand spellings.
- Keep the original text nearby until the converted version has been checked in context.
Things to Check
- Brand names and acronyms need manual review.
- Very long pasted documents can lag in the browser; convert sections at a time on low-memory phones.
- Paste the result into the CMS, document, spreadsheet, or form where the casing will be read.
Helpful FAQ
When is this tool most useful?
Use it for quick capitalization cleanup on headings, lists, labels, slugs, and short content drafts.
What should I inspect before using the output?
Check names, acronyms, punctuation, line breaks, and whether the chosen case matches the destination style.
Does this replace a specialist editor?
For house style enforcement, legal names, or localization, review the text manually after conversion.
Maintained by Taimour Husnain.