onul.works

Case Converter

Convert case online for uppercase, lowercase, title case, sentence case, and developer-friendly identifier formats.

⌘ Runs in browser ◴ No data stored ⌁ Free
Source text
Case conversion results

How to use

  1. 1 Enter or paste the text you want to convert.
  2. 2 Choose uppercase, lowercase, Title Case, camelCase, or another case format.
  3. 3 Click convert and review the output.
  4. 4 Copy the converted text when it looks right.

Common use cases

  • Convert headings to Title Case
  • Turn names into camelCase or snake_case
  • Batch convert case between uppercase and lowercase text

Frequently asked questions

Which case formats are supported?

It converts text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE.

Does it convert automatically while I type?

Yes. The output updates when you type text or change the selected case format.

How are words split?

Words are split on spaces, hyphens, underscores, and camelCase or PascalCase letter boundaries.

Related workflow

Case ConverterUse the case converter to normalize headings, button labels, or identifiers before they move into docs or code. → Markdown PreviewPreview the rendered result when those cleaned labels belong in a README or guide. → Remove Duplicate LinesClean up repeated lines at the end when pasted lists pick up duplicates.