First Letter Capitalizer

Prepare first-letter capitalization with word, sentence, line, and exception controls in a browser-only text utility.

🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.

Text case tool

Capitalize first letters

Ready

TextCapitalizeLowercase restPreserve acronyms

Frontend preview — no upload or external service.

Capitalized text

Paste text and choose capitalization rules to prepare a cleaned text preview.

Paste text, choose whether to capitalize words, sentences, lines, or only the first character, then set cleanup preferences.

Does it change text yet?

No. This implementation provides the frontend UI only.

Is pasted text private?

The current UI does not upload or store pasted text.