Case Converter
Switch text between upper, lower and title case.
How to use the Case Converter
Add your text
Type or paste content into the editor. Counts and transformations update live as you type.
Apply a transformation
Choose the case, format or mode you want. The original text is kept until you replace it.
Copy the output
Copy the processed text to your clipboard and paste it wherever you need it.
What Case Converter is for
Transform text into sentence case, title case, lower case, upper case, camelCase, snake_case and kebab-case in one click. Handles acronyms sensibly.
The Case Converter is part of the Text collection on ToolFlow. It is designed for one concrete job: switch text between upper, lower and title case. Everything runs client-side, so you can use it with sensitive material without creating a copy on someone else's server.
Common use cases
- Normalise headings
- Create code identifiers
- Fix accidental caps lock
Good to know
- No account is required, and there is no usage limit on the browser tool.
- Processing happens locally. Files are read from disk and the result is written back to your downloads folder.
- Results are reproducible: the same input and options produce the same output, with no hidden server round-trip.
- If the tool needs a live data source, the page states it explicitly instead of silently failing.
Case Converter FAQ
The questions people ask before using this tool.