Capital Letter Converter — Uppercase, Lowercase, Title Case
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Capital letter converter for any text. Uppercase, lowercase, title case, sentence case. Right-click selected text to convert. 🔠 Capital Letter Converter Change the capitalization of any text in your browser. Select text, right-click, and pick a style — the text is replaced in place and copied to your clipboard. No more pasting into converter websites. ✨ CASE STYLES 🔡 UPPERCASE — turn any selection into capital letters 🔠 lowercase — switch CAPS back to small letters 📝 Title Case — capitalize the first letter of every word, great for headlines 📄 Sentence case — capitalize only the first letter of each sentence, ideal for body copy and emails 🅰️ Capitalize — capitalize each word automatically 🔄 iNVERT cASE — flip every letter's case, handy after an accidental Caps Lock 📰 AP Title Case — headline style following the Associated Press rules 👩💻 Developer formats — camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE 🛠️ HOW IT WORKS 🖱️ Select text on any page, right-click, and choose a style from the "Convert case" menu. Editable text — form fields, rich editors, Gmail, Notion — is replaced right where it is, and the result is also copied to your clipboard so you can paste it anywhere. ⚡ Prefer the keyboard? Assign shortcuts to your most-used styles. 📋 The toolbar popup includes a quick converter for pasted text, toggles to choose which styles appear in the right-click menu, and a light/dark theme. 🔒 PRIVACY Everything runs locally in your browser. No data is sent to any server, there is no tracking, and your text never leaves your device. 💡 TIPS — The menu appears when text is selected: select first, then right-click. — Use Sentence case to clean up a paragraph typed in all caps. — Renaming code identifiers? Select the text and pick camelCase, snake_case, or kebab-case. Free and lightweight.