How to use it
Paste text, choose a case card, then copy, download or replace the original text with the current result.
Private text formatting
Case Converter
Paste once, compare useful text cases and copy the result you need — a free local tool for everyday writing, English copy and developer naming.
Your text stays in your browser.Your text
Paste once. Compare every case.
Optional: Developer & fun casesExpand when you need developer naming or playful text cases.
Developer Cases
Fun Cases
Protect My WordsKeep names, brands and acronyms as written in editorial cases.
Developer and strict case conversions intentionally do not preserve custom terms.
Choose an output case
Current result
Sentence case
Choose a case to see the result here.
How to use this tool
- Paste or type the text you want to reformat.
- Choose a writing or developer case from the available formats.
- Review names and brand terms, then copy, download, or replace the source with the result.
Quick answer
What is a Case Converter?
A case converter changes how letters are capitalized or how words are joined. It helps fix copied text, prepare headings and turn a phrase into a developer-friendly identifier without retyping.
Writing cases
Use Sentence case, lowercase, UPPERCASE, Capitalized Words and general English Title Case. Title rules can vary by publication.
Developer cases
Turn a phrase into camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case or Train-Case.
Control what stays unchanged
Protect names, brands and acronyms for editorial formats. Strict developer and all-upper/all-lower transforms stay predictable.
Common uses
- Editors standardize a heading while keeping names and brands under review.
- Developers turn a phrase into camelCase or snake_case for an identifier.
- Content teams prepare a consistent list of labels before publishing.
FAQ
Case Converter FAQ
How do I convert camelCase to snake_case?
Paste your text, choose the target format, and convert identifiers in one click.
Can I convert a whole paragraph at once?
Yes. Paste text of any length and convert it instantly.
Is there a title case converter?
Yes. Title Case is one of the built-in writing formats.
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