Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, or Sentence case in one click.
What is Text Case Converter?
Text Case Converter is a free online tool that transforms text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and snake_case instantly. It is useful for normalizing code identifiers, formatting headings, or fixing text pasted from different sources.
How to use
- Paste or type your text into the input box.
- Click the desired case conversion button (UPPER, lower, Title, Sentence, camelCase, snake_case).
- The output appears instantly. Use the Copy button to copy it to your clipboard.
Notes
- camelCase joins words and capitalizes each word after the first (e.g.
myVariableName). - snake_case joins words with underscores and lowercases everything (e.g.
my_variable_name). - Title Case capitalizes the first letter of every word.
FAQ
- What is the difference between Title Case and Sentence case?
- Title Case capitalizes the first letter of every word. Sentence case only capitalizes the first letter of the first word, treating the rest as normal sentence text.
- Can I convert code variable names?
- Yes. camelCase and snake_case conversions split text by spaces and punctuation, making them useful for renaming variables or function names.
- Does it handle non-English characters?
- UPPERCASE and lowercase use the browser's built-in
toUpperCase()andtoLowerCase(), which support most Unicode characters including accented letters.
Overview
Convert text between uppercase, lowercase, title case, and sentence case. Useful for documentation cleanup and consistent UI labels.
How to use
- Paste source text.
- Select the target case format.
- Copy the converted result.
Examples
-
Title cleanup
Input: hello world from api
Output: Hello World From Api
-
Variable style prep
Input: User Profile Name
Output: user profile name
Notes
- Abbreviations may need manual correction.
- Title case rules differ by style guide.
- For code identifiers, verify naming conventions separately.
FAQ
- Does it preserve punctuation?
- Yes, punctuation is kept while letter case changes.
- Can I convert multilingual text?
- Basic conversion works, but language-specific casing rules vary.
- Is there a batch mode?
- Use one text block at a time and paste multiple lines if needed.
Embed this tool
Paste this iframe into any HTML page to embed Text Case Converter on your site:
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