Text Case Converter Online — Free Tool
Instantly transform your text between uppercase, lowercase, title case, and sentence case seamlessly.
Words 0
Chars 0
Lines 0
Transform actions
Privacy note: All processing happens entirely in your browser. No data is sent to our servers.
About this tool
Transform text between uppercase, lowercase, title case, sentence case, and programming styles like camelCase or snake_case in one click.
Handy for normalizing headings, generating constants, or fixing caps-lock mistakes.
Common use cases
- Formatting blog titles to title case
- Generating CONSTANT_CASE env var names
- Cleaning pasted ALL CAPS email text
- Converting identifiers for code refactors
How to use
- Paste or type text in the input area.
- Select the target case transformation.
- Review output for edge words (articles in title case).
- Copy converted text into your document or IDE.
This page is available at /tools/text-case-converter/.
Understanding the result
- Title case may lowercase articles (a, the) depending on style rules.
- camelCase and PascalCase split on word boundaries—punctuation may be stripped.
- Sentence case capitalizes first letter of sentences, not every word.
- Locale affects Turkish I/i and other special casing—verify for non-English text.
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FAQ
Title case vs sentence case?
Title case capitalizes major words. Sentence case only starts sentences with capitals.
snake_case vs kebab-case?
snake uses underscores; kebab uses hyphens. Both often lowercase all words.
Does it handle Unicode?
Modern browsers handle many scripts; test output for your language.
Is text stored?
Conversion runs locally in the browser.