Case Converter
Type once. Copy the sentence, title, camel, snake or kebab case you need.
Everything you type stays in this browser — no upload, no account.
01 Capability
What it does
Small details that make the job quicker.
- Seven conversions at once: sentence case, Title Case, UPPER CASE, lower case, camelCase, snake_case and kebab-case.
- Updates on every keystroke, so you can compare styles without pressing another button.
- The identifier cases split existing camelCase and acronyms, not just spaces and punctuation.
- One copy button per style, with the copied row confirmed in place.
- Punctuation and line breaks survive the sentence and title treatments.
02 Questions
Questions
Short answers, no small print.
Which case should I use for a heading?
Sentence case reads best for most headings and body text. Title Case suits book and article titles. UPPER is for short labels, never for a paragraph, because it is harder to read.
Does the converter change the words themselves?
No. Sentence, Title, UPPER and lower only change letters. camelCase, snake_case and kebab-case also join the words and drop punctuation, because that is what those naming styles require.
How are existing camelCase names handled?
They are split at the capital letters first. For example, userProfile becomes user_profile and user-profile instead of userprofile. Runs of capitals are kept together too.
Does it work with accents and non-Latin scripts?
Yes. Word splitting and capitalisation are Unicode-aware, so accented letters, Cyrillic, Greek and other scripts work without a separate setting.
Why does Title Case capitalise small words like for and the?
This tool capitalises every word, which is the predictable rule. Some style guides keep short prepositions lowercase; if you need that, edit the one or two words after copying.
Is my text uploaded?
No. The conversion runs in this browser tab. Astra never receives the text, and nothing is stored after you close the page.