Uppercase & Lowercase Converter
Toggle text between UPPERCASE and lowercase — format code, clean data, and standardise text instantly.
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UPPER/lower tips
UPPERCASE is used for constants in programming, acronyms, and emphasis. Convert back to normal case after you're done.
Cleaning CSV data? Convert all names or addresses to consistent case in one click.
ALL CAPS text feels like shouting. Use lowercase for casual writing and sentence case for formal text.
Combine with other converters — lowercase first, then apply title case for a clean headline.
사용 방법
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