Text case converter

Change text case without retyping

Text accidentally typed with Caps Lock, a lowercase heading, or a list where every word should start with a capital letter does not need to be entered again. Paste it into the field, choose a mode, and the converted result replaces the original immediately.

Seven modes for everyday text work

• Sentence case capitalizes the beginning of every sentence and lowercases the rest.
• lower case and UPPER CASE convert the entire text to lowercase or uppercase.
• Capitalized Case starts every word with a capital letter.
• aLtErNaTiNg cAsE alternates lowercase and uppercase across letters while ignoring spaces and punctuation.
• Title Case formats headings while keeping short words such as “and”, “of”, and “the” lowercase where appropriate.
• InVeRsE CaSe swaps every lowercase letter for uppercase and every uppercase letter for lowercase.

Ukrainian and English without ASCII assumptions

The converter is Unicode-aware, detects Cyrillic versus Latin text, and applies the matching locale. Ukrainian apostrophes and letters such as “і”, “ї”, “є”, and “ґ”, English words, and emoji do not break word or character counting. Title Case uses separate short-word lists for Ukrainian and English.

Copy, download, and undo

Live counters show characters, words, and lines. Copy the result or download it as a plain UTF-8 .txt file. Undo restores earlier conversions and clears; typing manually starts a fresh history so an old undo can never erase newer edits.

Your text stays in the browser

Every operation runs in JavaScript on your device. The text is not sent to the server, saved to the database or localStorage, or passed to an external API. Close the tab and the data is gone.

Summary

Text Case Converter removes a small but recurring manual task: fixing Caps Lock, formatting headings, normalizing lists, and counting text. Free, no sign-up, and no length limit.

More utilities for text, graphics, and development live in the KAPLIA.PRO online tools catalog.