Uppercase and lowercase converter online
Paste your text and convert it to uppercase, lowercase, title case, sentence case or alternating. Copy the result with one click.
What it is for
The case converter changes the capitalization of a text without you having to retype anything. Paste the content, pick a mode and copy the result already in the right format.
It is the fastest way to standardize titles, fix text typed with Caps Lock on, or prepare names for a system that requires a specific pattern.
Conversion modes
- UPPERCASE: every letter in caps.
- lowercase: every letter in small caps.
- Title Case: capitalizes each word, great for headings.
- Sentence case: a common writing style.
- iNVERT: swaps uppercase for lowercase and vice versa.
When to use
- Standardize titles and headings.
- Fix a passage typed with Caps Lock on by mistake.
- Adjust names before importing into a spreadsheet or system.
Limitations
Conversion preserves accents and special characters. Title case capitalizes each word without applying language rules for articles and prepositions, so review long titles. Everything runs in the browser, with no data sent to servers.
Frequently asked questions
- Does conversion keep accents?
- Yes. Accented letters are preserved and only the capitalization changes, so words keep their correct spelling in any mode.
- Does it work with large texts?
- Yes. Since processing happens in your browser, you can convert long texts with no practical limit and without sending anything to servers.
- Does title case handle short words?
- It capitalizes the first letter of every word. For titles that follow a style guide, review short words such as of, and, or the.