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.
Input and output example
Example settings: UPPERCASE
Hello text
HELLO TEXT
Common questions
Will case conversion change Chinese text?
Chinese characters have no letter case and are not changed by case conversion. Use this for English headings and lists, and review the capitalization of proper names yourself.
Which files can I import?
Paste plain text or import UTF-8 .txt files, up to 1 MB and 20,000 lines per input. PDF, Word documents and images are not supported directly; extract the plain text first. Text stays in the current tab's memory.