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UPPERCASE Converter
Paste, type, or upload text and get every letter capitalized instantly — nothing else about your text changes.
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UPPERCASE Converter converts your text locally in your browser.
Capitalize every letter in one step
Retyping text in capitals is slow and easy to get wrong. This converter capitalizes every letter the moment you paste or type, which is useful for product codes and SKUs, labels and signage text, spreadsheet columns that must match exactly, form fields that require capitals, and short headings in designs that call for them. The converted text appears in its own box, so your original stays untouched until you choose to replace it.
How to convert text to uppercase
- Type or paste your text, or choose Upload Document to open a .txt, .md, .docx, or .pdf file.
- The UPPERCASE version appears immediately below.
- Choose Copy Result to use it elsewhere, or Replace Input with Result to keep editing it here — Undo Replace brings the original back.
What changes — and what doesn’t
Only letters change. Numbers, punctuation, symbols, emoji, spaces, and line breaks are kept exactly as they were.
| You enter | You get |
|---|---|
| order #4521 – ship to 12 Main St. | ORDER #4521 – SHIP TO 12 MAIN ST. |
| Café crème, s’il vous plaît | CAFÉ CRÈME, S’IL VOUS PLAÎT |
| straße | STRASSE |
- Accented and non-Latin letters are capitalized with standard Unicode rules: é becomes É, and Greek and Cyrillic letters change too.
- Some characters become two letters: ß becomes SS and the “fi” ligature becomes FI, so the result can be slightly longer than the original.
- Uppercasing cannot be undone automatically — converting back to lowercase will not restore which letters were capitals, so keep your original if you need it.
Your text stays on your device
- Text is converted by JavaScript running in your browser.
- Your text is never uploaded to Looty Tools or any other server.
- Uploaded documents are opened and read in your browser; the file itself is never sent to Looty Tools.
- Nothing is stored — refreshing or closing the page clears both boxes.
Limitations
- Uploads accept .txt and .md files up to 5 MB, Word .docx files up to 15 MB, and PDFs up to 25 MB and 50 pages. Older .doc files are not supported, scanned or image-only PDFs have no text to convert, and formatting such as bold or italics is not kept.
- Language-specific casing rules are not applied — for example, Turkish text needs a dotted capital İ for i, but standard Unicode rules give I.
- Long passages in capitals are harder to read; use uppercase for short text such as labels, acronyms, and codes.
Related text tools
- Character CounterCount characters with or without spaces.
- Case ConverterSwitch text between upper, lower, title, and sentence case.
- lowercase ConverterTurn text into lowercase letters.
Guides
- When to Use All CapsWhere all caps works — acronyms, codes, short labels, warnings, and legally conspicuous contract terms — where it does not, and better ways to add emphasis.
- All Caps and AccessibilityWhat dyslexia and plain-language guidance says about capitals, how CSS text-transform differs from typed capitals, and how screen readers can announce capital letters.
- Small Caps vs. All CapsWhat small caps are, how they differ from full capitals and from shrunken capitals, where typographers use them, and how to apply them in Google Docs and CSS.
UPPERCASE Converter FAQ
- Does converting to uppercase change numbers or punctuation?
- No. Only letters change. Digits, punctuation, symbols, emoji, spaces, and line breaks come out exactly as they went in.
- Why did “ß” turn into “SS”?
- The standard uppercase form of the German ß is the two letters “SS”, and some other characters, such as the “fi” ligature, expand the same way. Because of that, the converted text can be slightly longer than the original.
- Can I turn uppercase text back into its original capitalization?
- Not automatically — uppercasing removes the information about which letters were capitals. If you replaced your input, use Undo Replace to restore it; otherwise keep a copy of the original.
- Does it work with accented and non-Latin letters?
- Yes. Accented letters (é → É), Greek, Cyrillic, and other scripts with upper and lower case are converted using standard Unicode rules. Language-specific rules, such as the Turkish dotted İ, are not applied.
- Should long text be written in all caps?
- Usually not. Readability guidance such as the British Dyslexia Association style guide recommends avoiding capitals for continuous text. Uppercase works best for short labels, acronyms, and codes.
- Can I upload a Word document or PDF instead of pasting?
- Yes. Upload Document accepts .txt, .md, Word .docx, and text-based .pdf files, or you can drop a file onto the text box. The file is read in your browser — it is not sent to Looty Tools — and its text replaces whatever is in the box. Scanned PDFs without a text layer and older .doc files are not supported.
- Is my text uploaded or stored?
- No. The conversion runs in your browser; your text never leaves your device and is not saved. Refreshing the page clears it.
