About Case Converter
Quickly transform text into lowercase, UPPERCASE, Title Case, Sentence case, or Toggle Case. This lightweight tool is ideal for writers, students, developers, and anyone cleaning up text copied from different sources. It runs entirely in your browser, so your words never leave your device.
How to use
- Paste or type your text in the large box above
- Tap a case option to instantly convert the text
- Use Copy to move the result elsewhere, or Paste to bring text in from your clipboard
Supported cases
- lowercase: converts all letters to lowercase
- UPPERCASE: converts all letters to uppercase
- Title Case: capitalizes the first letter of each word
- Sentence case: capitalizes the first letter of each sentence
- tOGGLE cASE: flips the case of each letter
Tips
- For professional titles, you may want to keep short words like “a”, “an”, “the”, “of”, and “to” lowercased unless they start the title. This tool applies a simple, consistent title‑case rule for speed.
- When working with code, use UPPERCASE for constants and lowercase for case‑sensitive identifiers as needed.
- Sentence case is great for clean UI labels and natural‑language strings.
If you need language‑specific capitalization rules or style‑guide‑precise title casing, consider a dedicated formatter. For most everyday tasks, this converter offers a fast, reliable result in one tap.