Six letter cases, applied with the casing rules of 30+ languages — so Turkish ı and İ come out right.
Similar Text Tools
What is Online Case Converter?
Case Converter is a free online tool for converting text to different cases. If you have a wrongly formatted text you want to convert it to a specific case, online case converter will assist you to perform it immediately. Its language-sensitive case conversion feature allows you to convert text to different cases for different languages. It is a useful tool for writers, editors, and content creators to format their text in a proper way.
If you have a text other than English and it contains language-specific characters that needs to be treated differently than English, you can convert your text into different locales. Online Case Converter supports multiple languages such as English, German, French, Spanish, Italian, Dutch, Portuguese, Russian, Turkish, Arabic, Chinese, Japanese, Korean, and more.
There are uppercase and lowercase letters in alphabets. You can use either one of them in your text or a mixture. These patterns define different cases. Here is an image showing uppercase and lowercase letters in English alphabet. You can convert cases for different alphabets with Online Case Converter.

Here is a list of available cases with their detailed explanations and examples.
- Sentence Case: First letter of all sentences will be uppercase while remaining will be lowercase. Sentences will be identified with punctuations which ends a sentence such as dot, question mark or exclamation mark.
Example: "This is the first sentence. This is the second one." - Title Case: First letters of each word are uppercase while remaining will be lowercase.
Example: "This Is An Example For Title Case" - Uppercase: All letters in the text will be uppercase.
Example: "ALL LETTERS ARE IN UPPERCASE." - Lowercase: All letters in the text will be lowercase.
Example: "all letters are in lowercase." - Mixed Case: It is a sequence of one letter uppercase, one letter lowercase for each word.
Example: "OnE LeTtEr UpPeRcAsE, OnE LeTtEr LoWeRcAsE In EaCh WoRd." - Inverse Case: It is a sequence of one letter lowercase, one letter uppercase for each word.
Example: "oNe lEtTeR lOwErCaSe, oNe lEtTeR uPpErCaSe iN eAcH wOrD."
How to use Online Case Converter?
You can convert you text into any case by following these steps.
- First, paste your text in the text area you want to convert.
- Select the case from the list you want to convert. It converts the text immediately after you select the case. If you modify your text and want to apply the same format again, just use the "Apply" button.
- You can use "Copy" button to copy the converted text into your clipboard. In addition, you can download the output as a .txt file by using the "Download" button.
Frequently asked questions
Which cases can I convert to?
Sentence case, title case, uppercase, lowercase, mixed case and inverse case. Each one is applied the moment you pick it, and the Apply button reruns it if you edit the text afterwards.
Why does the language setting matter?
Because case rules are not universal. Turkish has a dotted and a dotless i, so uppercasing "i" correctly gives "İ" rather than "I"; German, Dutch and several other languages have their own quirks. Picking the right locale is what stops those letters being mangled.
Does it change anything other than the letters?
No. Punctuation, spacing and line breaks are left exactly as they were — only letter case changes. If the text also has messy spacing, run it through the Multiple Whitespace Remover first.
Can I get the result out as a file?
Yes. Copy puts it on your clipboard, and Download saves it as a .txt file.
Is my text sent to a server?
No. The conversion runs in your browser, so whatever you paste stays on your machine. The same is true of the Text to Handwriting Converter, which turns the text you have just fixed into handwriting.