ALL CAPITALS. SAME TEXT.
Lowercase to Uppercase Converter
Turn English letters a–z into A–Z. Paste a label, heading, or list and copy the uppercase result.
Free · No sign-up · Text stays in your browser
Names and abbreviations become uppercase too.
Review changes
Convert your text to see what changed.
Copy your result before leaving. This tool does not save your text.
Convert lowercase to uppercase
Use this tool when the actual text—not just its appearance—needs to be in capitals. It works for a short sign, a slide label, or a batch of headings. You do not need an account, payment card, or AI service.
Three steps
- Paste your text, including any lines or spaces you want to keep.
- Select Convert to uppercase. Review the result before using it.
- Select Copy result to copy plain text. Use Clear and Undo if you need to start over.
| Original | Result | Why |
|---|---|---|
summer opening hours | SUMMER OPENING HOURS | A sign or short display heading |
room a
room b | ROOM A
ROOM B | A list: blank lines and spaces stay in place |
iPhone, api v2! | IPHONE, API V2! | Brand spelling also changes |
café déjà vu — 中文 | CAFé DéJà VU — 中文 | Only English a–z changes |
What this uppercase converter preserves
Numbers, punctuation, spaces, tabs, and blank lines stay in place. Line endings are standardized. Each conversion accepts up to 100 lines and 20,000 Unicode code points; a trailing line break counts as an empty line. Oversized input is not silently cut down.
Uppercase is not title case
a guide for writers becomes A GUIDE FOR WRITERS here. A title-style converter would keep some letters and small words lowercase. For a paper or publication, use the APA tool, AP tool, or choose another title style.
Questions about uppercase conversion
Does it support accented letters?
It changes English letters a–z only. For example, café becomes CAFé, not CAFÉ. Accented and non-Latin characters stay unchanged. This is not a locale-aware converter.
Does it preserve names such as iPhone?
No. English letters in names become uppercase too. Preferred spellings belong to title case and sentence case, not this all-uppercase mode.
Can I use it for URLs or code?
They are treated as plain text. Changing letter case may break a path, identifier, or password. Use it only when your destination explicitly accepts uppercase text, and do not paste secrets.
Is this different from CSS text-transform?
This tool produces uppercase text you can copy elsewhere. CSS can display a website heading in capitals without changing the source text. Choose based on whether you need changed text or only a visual treatment.
Can I change uppercase back to lowercase?
Use the uppercase-to-lowercase converter. It makes all English letters lowercase; it cannot recover the original mixture of capitals and lowercase letters.