Free Case Converter — UPPERCASE, lowercase, Title Case & More

Paste or type your text below, then click any style to convert it instantly. Word, character, and line counts update live as you type — and everything you enter stays in your browser; nothing is uploaded anywhere.

How it works

When to use each style:

• UPPERCASE — shouting a headline, filling forms that require all-caps, or fixing text that was accidentally typed in caps.
• lowercase — normalizing tags, usernames, or any text where capitals cause mismatches.
• Sentence case — cleaning up pasted text so it reads like a normal sentence.
• Title Case — headlines, book titles, and essay headings (capitalize the first letter of each major word).
• Capitalize Each Word — presentation slides and poster titles where you want every word capitalized, including small ones.
• aLtErNaTiNg / InVeRsE — playful social-media captions and memes.
• camelCase / PascalCase / snake_case / CONSTANT_CASE — naming variables, files, and constants when coding; converting a phrase into code-ready names in one click.
• kebab-case / dot.case — URL slugs, CSS class names, and file names.

Everyday uses

• Fix accidental CAPS LOCK: typed a whole email with caps lock on? Convert it back in one click instead of retyping.
• Format essay and blog headings: paste a heading and get clean Title Case that looks professional.
• Clean copied text: strip random capitalization from PDFs, websites, or documents before reusing the text.
• Name things for code: turn “User Profile Settings” into userProfileSettings, user_profile_settings, or USER_PROFILE_SETTINGS instantly.
• Write social captions: make bios, captions, and comments stand out with alternating or inverted case.
• Standardize lists: convert messy, inconsistently-capitalized lists (names, places, tags) into one uniform style.