Convert between Arabic numerals and Chinese financial uppercase. Lowercase only converts digits, the decimal marker, and unit characters found in the text — everything else is dimmed. There is no unit dropdown. All processing stays in your browser.

Features
- To uppercase: Arabic → Chinese financial numerals (including decimal reading).
- To lowercase: Chinese uppercase → Arabic; only digits/dot/inline units; other text is ignored and dimmed.
- Runs locally in the browser.
How to Use
- Enter content in the input box (max 50 characters).
- Uppercase: enter Arabic digits, click To uppercase.
- Lowercase: enter Chinese financial numerals (other text allowed), click To lowercase.
- Results auto-copy; use Copy result again or Reset to clear.
Notes
- Processing is local; nothing is uploaded.
- Uppercase does not append amount units; unit characters already in the input are kept by lowercase.