Uppercase Lowercase Converter – Free Online uppercase lowercase converter
Convert text to UPPERCASE or lowercase instantly. Use this free tool for SEO meta titles, code variables, emails, documents, and any place where consistent casing matters.
Converted Text
Shortcut: Press Ctrl/Cmd + Enter to convert input to UPPERCASE quickly.
Features & Functionality
- Instant uppercase lowercase conversion
- Toggle case for mixed-case text
- Trim and normalize whitespace
- Preserves Unicode and surrogate pairs for emoji and non-Latin scripts
- Copy and download with modern clipboard and safe blob handling
- No login required, mobile-first responsive design
Frequently Asked Questions
- How do I use the Uppercase Lowercase Converter?
Paste your text, click the appropriate conversion button, then copy or download the output. - Will this handle emoji and non-Latin scripts?
Yes. The tool uses locale-aware methods to preserve Unicode and surrogate pairs. - Is my text sent to a server?
No. Conversion, copy and download happen client-side in the browser.