Text Tools
Convert text to UPPERCASE
Paste text, get it back in capitals, copy it. That is the whole tool — and it handles the accented and non-Latin letters that a naive conversion leaves behind.
Type above and the converted text appears here.
- Runs in your browser
- No account required
- Free to use
How it works
Uppercasing is not as simple as it looks
Converting a–z is trivial. Converting é to É, ß to SS and Turkish dotless ı correctly is not, and it is where hand-rolled conversions fall down. This uses the browser’s own Unicode case mapping, which handles those and the scripts that have no case at all — Arabic and CJK text passes through unchanged rather than being mangled.
It is one operation, so there is no button
The conversion runs as you type. Nothing is sent anywhere and nothing is waiting to happen, so a “convert” button would be a step with nothing behind it.
What it does
Copy or download
One button for the clipboard, one for a plain text file.
Handles any script
Accented Latin, Greek and Cyrillic uppercase correctly; scripts without case are left alone.
Nothing is uploaded
The text stays in your browser. No account, no server, no logging.
Practical advice
Getting a better result
- Uppercase is harder to read in long runs — the shape of a word disappears when every letter is the same height. For emphasis, bold usually reads better than capitals.
- If you need the reverse, or Title Case, the case converter offers twelve cases including camelCase and snake_case.
- Uppercasing is not always reversible: “iOS” uppercased becomes “IOS”, and lowercasing that gives “ios”. Keep the original if you might need it back.
Questions
Things people ask
Does it work with accented characters?
Yes. It uses the browser’s Unicode-aware case conversion, so é becomes É and ñ becomes Ñ. German ß becomes SS, which is the correct uppercase form.
Can I get the original text back?
Not from the result alone. Case conversion loses information — once “iPhone” is “IPHONE”, nothing in the text says where the capitals used to be. Keep a copy of the original if you might need it.
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Open toolWho builds these
Free tools by day. Websites that earn their keep by trade.
KuConvert is built by KUDUY, a web design and development agency. From custom WordPress builds to SEO and e-commerce, everything they do is engineered to bring you more qualified traffic and turn it into revenue.
Web Design
Custom, conversion-focused web design that captivates visitors and turns them into paying customers. Mobile-first, fast, and built to rank.
Web Development
Custom WordPress websites built with clean code, blazing-fast performance (Core Web Vitals optimised), and enterprise-grade security.
E-Commerce
Online stores that convert visitors to customers with seamless shopping experiences.
SEO
Technical SEO, keyword research, on-page optimisation and local SEO strategies that drive qualified organic traffic.
Digital Marketing
Data-driven campaigns that deliver measurable ROI across every channel.
Branding
Memorable brand identities that stand out in any market and build lasting trust.
Website Help
One-on-one expert support for bug fixes, updates and ongoing maintenance — without a long-term retainer.
Fixed scope, no surprise invoices
Most sites ship in four to eight weeks with the scope and the price agreed up front.
SEO from day one
Search is designed into the build — structure, schema and Core Web Vitals — not retrofitted.
A team, not a ticket queue
A project manager, a designer and a developer you can actually reach.
Need your whole site to load this fast?
Images are usually the heaviest thing on a page and the easiest win. KUDUY works on site speed, image delivery and Core Web Vitals for teams who would rather not do it by hand.
This tool runs entirely in your browser. Your files are never uploaded.