Text Case Converter — snake_case, camelCase, kebab-case & More
Convert text between UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case in one click. Instant results as you type, handles underscores and hyphens as word separators automatically. No upload, no account, no logs — runs entirely in your browser.
How to use this tool
- Paste or type your text in the input field.
- Click the target case button.
- Copy the converted text.
About Text Case Converter
Text casing is one of those small editing chores that quietly eats time. You copy a heading that arrived in ALL CAPS, a developer hands you a variable that needs to become snake_case, or a designer asks for a label in Title Case instead of sentence case. Doing these conversions by hand means retyping or fiddling with a word processor's formatting menus, and the results are inconsistent. This converter takes any block of text and rewrites it in the casing you choose, instantly, so you can paste, click, and copy without breaking your flow.
Eight transformations are available from a single row of buttons: UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case. The first four are the everyday writing styles for headings, prose, and proofreading. The last four are programming conventions: camelCase and PascalCase for identifiers, snake_case for Python and database columns, and kebab-case for URLs, CSS classes, and file names. The tool treats existing underscores and hyphens as word separators, so converting an existing snake_case string into kebab-case or Title Case works the way you would expect.
Results update live as you type, and the active conversion is highlighted so you always know which style you are looking at. A Clear button empties the field for the next paste, and a Copy button places the converted output on your clipboard with a brief confirmation. Because the result is shown in a monospace box, whitespace and separators stay visible, which matters when you are checking that a slug or identifier came out exactly right.
Everything happens in your browser, so even long passages convert with no upload and no waiting. The tool is handy for writers normalizing inconsistent headings, developers translating between naming conventions, content editors preparing copy for a CMS, and anyone who has ever fixed a title that came through in shouting capitals.
Frequently Asked Questions
- What case styles can I convert between?
- Eight: UPPER CASE, lower case, Title Case, Sentence case, camelCase, PascalCase, snake_case, and kebab-case. Pick any one with a single button click and the whole input is rewritten in that style.
- What is the difference between Title Case and Sentence case?
- Title Case capitalizes the first letter of each word, the way many headlines are written. Sentence case capitalizes only the first letter of the text and leaves the rest lowercase, like a normal sentence.
- How does it handle text that already has underscores or hyphens?
- It treats underscores and hyphens as word boundaries. So a snake_case input can be converted cleanly into kebab-case, camelCase, Title Case, or any other style without leaving stray separators.
- Does the result update automatically?
- Yes. The converted output refreshes as you type and whenever you switch the case style, so there is no separate Convert button to press.
- What is camelCase versus PascalCase?
- Both join words with no spaces. camelCase keeps the first letter lowercase (for example myVariableName), while PascalCase capitalizes the first letter too (MyVariableName). camelCase is common for variables, PascalCase for class and type names.
- Can I convert a large block of text?
- Yes. Paste a paragraph or a list of lines and the conversion applies to the entire input at once. Since processing runs locally in your browser, size is limited only by your device's memory.
- How do I copy the result?
- Click the Copy button below the output and the converted text is placed on your clipboard, with a short confirmation message. The Clear button empties the input field for your next conversion.
- Is my text uploaded anywhere?
- No. All conversions run entirely inside your browser, so nothing you type is sent to a server.
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Embed this tool on your site
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<iframe src="https://brevio.pro/embed/text-case" width="100%" height="600" loading="lazy" style="border:1px solid #e5e5e5;border-radius:8px" title="Text Case Converter — brevio"></iframe> <p style="font:12px/1.4 sans-serif"><a href="https://brevio.pro/tools/text-case">Text Case Converter</a> by <a href="https://brevio.pro">brevio</a></p>