Text case conversion
Change text case for headlines, titles, and forms
Headlines, titles, and database imports each need their own case. The text case converter switches between uppercase, lowercase, title case, sentence case, and other formats instantly, entirely in your browser.
The fast workflow
Follow the same short workflow every time so the result is predictable.
Paste the text
Drop in headlines, titles, or any block of text.
Pick the target case
Choose the format the destination expects.
Review the preview
Check edge cases such as acronyms before copying.
Copy the result
Copy the converted text into your document or form.
A quick rule of thumb
Sentence case capitalizes only the first word and proper nouns; title case capitalizes major words and leaves short articles and prepositions lowercase unless they start the title.
The converter applies these standard rules automatically, and the slug generator is the right next step when the text is headed for a URL.
Common problems
- Title-casing every word including articles like "the" and "and"
- Converting code identifiers that must keep their exact case
- Using uppercase for long passages, which hurts readability
Best practices
- Keep acronyms and brand names in their original case
- Use sentence case for body text and title case for headings
- Do not case-convert source code or database values
Frequently asked questions
What is the difference between title case and sentence case?
Title case capitalizes major words; sentence case capitalizes only the first word and proper nouns.
Will the converter change acronyms?
Case conversion applies to letters. If you need to protect acronyms, fix them after conversion or convert in smaller chunks.
Can I convert a whole file?
Yes. Open a text file locally and the tool converts its full content.
Is my text uploaded?
No. Conversion runs locally in your browser.
Your data stays local
Everything runs in your browser. Files and values are never uploaded or stored.
Open Text Case Converter