Uppercase Converter
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Uppercase conversion applies the Unicode standard case mapping for each letter. Most Latin letters convert directly; some special characters (e.g., German ß → SS) follow locale-specific rules.
Numbers, punctuation, whitespace, and symbols remain unchanged. Only cased letters (a–z and international alphabets) are converted to their uppercase equivalents.
Multi-line input is converted line by line, preserving line breaks and paragraph structure. Each line's letters are uppercased independently without merging or reordering content.
Updated: July 2026
A designer converts a section title to uppercase for a formal report or presentation slide.
→ QUARTERLY FINANCIAL SUMMARY
A developer standardizes variable labels or CSS identifiers to uppercase convention.
→ API-ENDPOINT-V2
A print shop converts a multi-line shipping address to all caps for engraving or label compliance.
→ 123 MAIN STREET SPRINGFIELD, IL 62701
ALL CAPS reduces readability and is harder to scan. Reserve uppercase for short headings, labels, and acronyms — not body text.
Turkish dotted/dotless I (İ/i vs I/ı) and German ß require locale-aware conversion. Standard uppercase may not match every language's typographic conventions.
Transform any text to all uppercase letters in one click. Useful for headings, acronyms, CSS class names, military formatting, and making text stand out — while preserving numbers and punctuation.