Case Converter: Online Tool for Changing Text Case
Our free online case converter is an essential tool for copywriters, editors, developers, and students. It lets you instantly change the case of any text in one click: convert letters to upper or lower case, capitalize the first letters of sentences or of each word. The service runs right in your browser — no need to download third-party software.
Available Conversion Modes
The tool supports four main text formatting modes for any task:
- UPPERCASE — converts all lowercase letters to capitals (SAMPLE TEXT). Ideal for highlighting important headings, acronyms, and names.
- lowercase — converts all capitals to lowercase (sample text). Helps quickly fix text typed with Caps Lock on by mistake.
- Sentence case — automatically capitalizes the first letter of each sentence and leaves the rest lowercase. Essential when formatting long articles and proofreading.
- Title Case — capitalizes the first letter of every word (Sample Text With Title Case). Traditionally used for headlines in English and international press.
Who Needs This Tool and Why?
Automatic case conversion saves specialists a great deal of time across many fields:
- Copywriters and content managers: quickly fix texts submitted in the wrong case, format headings (H1–H6) and lists before publishing.
- SMM specialists and marketers: create eye-catching ads and social posts (VK, Telegram) where proper text emphasis improves CTR.
- Developers and front-end engineers: normalize text constants, SQL queries, and UI strings without retyping.
Frequently Asked Questions (FAQ)
Are my texts stored on the server?
No. We guarantee full privacy. All text processing happens exclusively in your browser with JavaScript. Your data is not sent over the network or stored.
Does the tool work correctly with Russian (Cyrillic)?
Yes. The service fully supports Cyrillic, Latin, and other languages, correctly recognizing sentence boundaries and special characters.