What this tool does
This tool converts your text between four cases with one click: UPPERCASE, lowercase, Title Case (each word capitalised) and Sentence case.
Sentence case also repairs accidental CAPS LOCK text — it lowercases everything and capitalises the first letter of each sentence. Everything happens in your browser.
How to use it
- Type or paste your text.
- Press one of the four case buttons — the text in the box is replaced instantly.
- Copy the result or download it as a .txt file.
Supported formats
- Input: typed or pasted plain text
- Output: converted text in the same box, with copy/download
Limitations
- Conversions replace the text in the box — press Reset to get the original back only before typing further.
- Title Case capitalises every word including short ones like “of” and “the”.
- Sentence case works on Latin-script sentence markers; mixed-script documents may need manual touch-ups.
Frequently asked questions
How do I fix text typed with CAPS LOCK on?
Paste it and press “Sentence case” — everything is lowercased and each sentence is re-capitalised, which usually gives readable text in one click.
Does Title Case capitalise small words?
Yes, every word gets a capital first letter. If you need strict headline rules (skipping “a”, “of”, “and”), edit those words after converting.
Will it change my original text permanently?
The text in the box is replaced, but nothing is stored anywhere. Use Reset to clear and re-paste if you need the original again.