ToolNestFree Online Case Converter
Fix wrongly-capitalized text in one click. Our free case converter transforms any text into UPPERCASE, lowercase, Title Case, or Sentence case instantly — perfect for cleaning up pasted content, formatting headings, and fixing caps-lock accidents.
✓ Free forever · ✓ No signup · ✓ Runs in your browser — your data never leaves your device.
How to Use the Case Converter
- Paste your text into the input box.
- Click the case style you want: UPPER, lower, Title, or Sentence.
- Your converted text appears instantly in the output box.
- Copy the result with one click.
Why Use Our Case Converter?
- Four case styles — UPPERCASE, lowercase, Title Case, and Sentence case.
- Smart Title Case — capitalizes each word while keeping the rest lowercase.
- Sentence case — capitalizes the first letter after every period, question, or exclamation mark.
- Instant & private — conversion runs in your browser; nothing is uploaded.
Frequently Asked Questions
What is Title Case?
Title Case capitalizes the first letter of every word — commonly used for headings, titles, and headlines.
When should I use Sentence case?
For body text, descriptions, and anywhere normal prose capitalization is expected: first word capitalized, rest lowercase.
Will it fix text typed in all caps?
Yes — paste all-caps text and hit 'lowercase' or 'Sentence case' to normalize it instantly.
Does it handle punctuation correctly?
Yes. Sentence case detects . ! and ? to capitalize the next word; Title Case respects word boundaries.
Is the tool free?
Completely free with unlimited conversions and no signup.