Paste text and it is returned in capital letters while you type. Digits, punctuation and spacing stay as they were. Letters without a single capital are expanded, so Straße becomes STRASSE, seven characters instead of six. A Turkish option turns istanbul into İSTANBUL with the dot kept.
All-caps text turns up in headings, legal clauses, signage drafts, spreadsheet codes and programming constants such as MAXRETRYCOUNT. Retyping it by hand invites typos, and the Caps Lock key does nothing for text you already have. This converter applies the Unicode uppercase mapping to every letter, reports how many letters changed and how many characters the result has, and lists any letter that expands into two, such as German ß. Greek, Cyrillic and accented Latin letters convert as well. One limit: scripts without capital letters, including Arabic, Hebrew and Chinese, come back unchanged, because there is nothing to capitalise.
Type, paste, or open a .txt file from your device into the text box.
Keep Standard Unicode for most languages, or choose Turkish / Azeri so i becomes İ.
Compare characters before and after; the table lists letters that grew into two.
Use Copy result to paste the uppercase text where you need it.
Result Uppercase text: STRASSE
Letters changed: 5
Characters before: 6
Characters after: 7
Lines: 1
ß has no single capital in the default mapping, so Straße becomes STRASSE and gains one character.
Result Uppercase text: İSTANBUL
Letters changed: 8
Characters before: 8
Characters after: 8
Lines: 1
Under Turkish rules the dotted i keeps its dot as a capital, giving İSTANBUL rather than ISTANBUL.
Result Uppercase text: MAX_RETRY_COUNT = 5
Letters changed: 13
Characters before: 19
Characters after: 19
Lines: 1
Underscores, the equals sign and the digit stay as typed; only the 13 letters change.
output = each character replaced by its Unicode uppercase mapping (full case mapping, SpecialCasing.txt)
simple mappingspecial mappingTurkish ruleEach character is looked up in the Unicode Character Database. Letters with a capital form are replaced; everything else, including numbers, symbols, emoji and uncased scripts, passes through untouched. The full mapping can lengthen text, which matters for fields with a character limit. The Turkish option applies the language-specific rules that keep the dot on a capital i.
Some lowercase letters have no single capital. German ß becomes SS, and a few ligatures such as fi become FI. The characters-after count and the table show exactly which letters expanded.
Turkish and Azeri have two separate letters: dotted i and dotless ı. Their capitals are İ and I. The standard rule maps i to plain I, which is wrong for those languages, so the option keeps the dot.
No. Digits, punctuation, spaces, line breaks and emoji are copied as they are. Only characters that have an uppercase form in Unicode are replaced.
Yes. Greek, Cyrillic, Armenian and accented Latin letters all have capitals in Unicode and convert, so привет becomes ПРИВЕТ and καλημέρα becomes ΚΑΛΗΜΈΡΑ with the accent kept.
Those writing systems have no uppercase and lowercase distinction. The converter leaves them as they are and shows a note that nothing changed.
No. The conversion runs in your browser, and the text is not stored after you leave the page.
Using this tool in an assignment, article or report? Copy a citation, or a link for your website.
Tools Directory Editorial Team. (2026, October 26). Uppercase Converter. Tools Directory. Retrieved October 26, 2026, from https://tools.milunir.com/text-tools/case-and-formatting/uppercase-converter/
Tools Directory Editorial Team. “Uppercase Converter.” Tools Directory, 26 Oct. 2026, https://tools.milunir.com/text-tools/case-and-formatting/uppercase-converter/. Accessed 26 Oct. 2026.
Tools Directory Editorial Team. “Uppercase Converter.” Tools Directory. Last modified October 26, 2026. Accessed October 26, 2026. https://tools.milunir.com/text-tools/case-and-formatting/uppercase-converter/.
<a href="https://tools.milunir.com/text-tools/case-and-formatting/uppercase-converter/">Uppercase Converter – Tools Directory</a>