Convert text to any case format instantly — uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case, and more. Paste your text, pick a case style, and copy the result. The preview updates live as you type or switch formats.
Choose a case format below. The converted preview updates instantly.
Frequently Asked Questions
What is a Text Case Converter?
A Text Case Converter transforms the capitalisation of any text into a chosen format — from simple uppercase and lowercase to programming styles like camelCase and snake_case. You paste or type your text, select a case style, and copy the converted result instantly.
What case formats are supported?
The tool supports eleven formats: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, inverse case, and alternating case. Click any format button to see the result update live in the preview area.
What is the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every word — for example, The Quick Brown Fox. Sentence case capitalises only the first letter of each sentence, like normal prose — for example, The quick brown fox jumps.
When should I use camelCase or snake_case?
camelCase and PascalCase are common in programming for variable and class names (e.g. myVariableName, MyClassName). snake_case and kebab-case are used for file names, URLs, and database columns (e.g. my_file_name, my-file-name). CONSTANT_CASE is typically used for constants and environment variables.
Does the converter change my original text?
No. Your original text stays in the input area unchanged. The converted version appears separately in the output preview below. Use Copy Result to copy only the converted text to your clipboard.
Is my text stored or sent anywhere?
No. All conversion happens entirely in your browser. Your text never leaves your device and is not stored on any server.
Can I count words or characters in my text?
Yes — use the Word Counter for word, sentence, and paragraph counts, or the Character Counter for detailed character breakdowns.
Is this tool free and does it work on mobile?
Yes on both counts. The Text Case Converter on draft21 is completely free with no account or sign-up required and works on phones, tablets, and desktops.