Case Converter — Change Text Case Online
Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
Something went wrong running this tool. Your inputs were kept.
What is Case converter?
Case Converter — Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
Word splitting and case transformation are performed by the change-case open-source library (vendored), which detects word boundaries in camelCase, PascalCase, snake_case, kebab-case and space-separated text, then rebuilds the words with the target delimiter and casing. "UPPER CASE" and "lower case" use the same engine splitting and then normalize the whole string. Everything runs client-side; no AI is involved.
Why use this case converter?
Built for case converter
Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
Transparent & honest
Conversion is structural (word boundaries + delimiter + casing), not linguistic — it does not know which words "deserve" capitalization in formal title case; small words like "the" and "of" are capitalized in Title Case output.
Private by design
Everything runs in your browser. Your inputs never leave your device.
Works everywhere
Fully responsive — perfect on desktop, tablet, and mobile. No app needed.
Regularly updated
Regularly maintained and reviewed to ensure accuracy.
Free forever
No accounts, no limits, no watermarks. Use Case Converter as much as you need.
How to use Case Converter
- 1Type or paste your text into the "Text to convert" box.
- 2Pick a "Target case" from the dropdown — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, or CONSTANT_CASE.
- 3Run the tool to get your converted text back, all processed in your browser.
- 4Copy the result and use it anywhere — headlines, code, file names, or SEO titles.
- 5Re-run with a different target case any time; nothing you type is uploaded or stored.
What can you do with Case Converter?
- Convert text case online free — Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
- Change uppercase to lowercase without retyping — Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
- Difference between title case and sentence case — Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
- Convert text to camelcase or snake_case — Free case converter: change text case instantly — Title Case, UPPER CASE, lower case, Sentence case, camelCase, PascalCase, snake_case and kebab-case.
Good to know
- Conversion is structural (word boundaries + delimiter + casing), not linguistic — it does not know which words "deserve" capitalization in formal title case; small words like "the" and "of" are capitalized in Title Case output.
- Locale-specific casing edge cases (e.g. Turkish dotted I) follow the host environment defaults.
- Very long inputs are converted synchronously in the browser; extremely large pastes may take a moment.
How it works
Word splitting and case transformation are performed by the change-case open-source library (vendored), which detects word boundaries in camelCase, PascalCase, snake_case, kebab-case and space-separated text, then rebuilds the words with the target delimiter and casing. "UPPER CASE" and "lower case" use the same engine splitting and then normalize the whole string. Everything runs client-side; no AI is involved.
Examples
Status: ok — "How To Bake The Perfect Sourdough".
Status: ok — "userProfileSettings".
Status: ok — "MAX_UPLOAD_SIZE".
Related searches
People also search for these — this tool handles them all: