YOUR TEXT, IN FOCUS
Free · No accountChange case.
Convert text to uppercase or lowercase while preserving punctuation and line breaks.
Text stays in this tab
0 LinesUTF-8 · TXT
Text is kept in memory only. Refreshing or closing this tab clears it. We do not upload your text or store it in your browser.
01 — How to use it
The right case, in one click.
- Paste your text.
- Choose uppercase or lowercase.
- Apply and copy the result.
02 — A few useful details
Uses the selected interface language’s Unicode casing rules. Chinese and Japanese characters without case remain unchanged. Some letters may expand when uppercased.
Use UTF-8 plain text, up to 1 MB and 20,000 lines per input.