String case converter

Client

Paste words, identifiers, or paths; pick a target style. Splits on spaces, underscores, hyphens, and camelCase boundaries.

Source text

?

Splits on spaces, underscores, hyphens, and camelCase boundaries. Adjust the result in your editor after copying if needed.

Result

helloWorldFromApiUserProfile

Common use cases

  • Rename API fields between JSON (camelCase) and SQL or env files (snake_case).
  • Normalize file paths or CSS class names to kebab-case or CONSTANT_CASE.
  • Convert pasted phrases from titles to a single identifier style for code generation.

Common mistakes to avoid

  • Expecting perfect results on natural language sentences

    Heuristics split on spaces, hyphens, underscores, and camel boundaries—odd phrases may need manual cleanup.

  • Breaking acronyms when converting case

    Strings like HTTP or URL may become Http or url depending on rules—verify against your style guide.

  • Applying locale-specific casing blindly

    Turkish i/İ and similar edge cases may not match server-side libraries—double-check for international brands.

FAQ

Is my text sent to a server?

No. Transformation runs locally in your browser.

Which case styles are supported?

The workspace lists presets such as camelCase, PascalCase, snake_case, kebab-case, and CONST_CASE—see the UI for the exact set.

Can this fix entire JSON files?

Paste chunks of keys or values as needed. For large documents, prefer a dedicated transform in your editor or pipeline.

More tools

Related utilities you can open in another tab—mostly client-side.