Convert Case
Change letter case to uppercase, lowercase, title case, or sentence case.
🔒 100% private
⚡ Instant results
∞ No limits
About Convert Case
Change letter case to uppercase, lowercase, title case, or sentence case. It runs entirely in your browser — no content you enter is ever sent to our servers or stored anywhere.
Free to use with no daily limits and no account required.
💡 Common Use Cases
- Format text for social media posts and bios
- Fix all-caps text copied from PDFs or old documents
- Standardize email subject lines
- Convert variable names between naming conventions
❓ Frequently Asked Questions
UPPERCASE, lowercase, Title Case, Sentence case, aLtErNaTe CaSe, and iNVERSE case.
Yes, it handles most Unicode characters. Numbers and symbols are left unchanged — only letters are converted.
Absolutely — Sentence case and Title Case are perfect for social media profiles, captions, and bios.
Title Case capitalizes every word. Sentence case only capitalizes the first word of each sentence.
No — you can convert as much text as you like. The tool is unlimited and free.