Case Converter
Change text capitalization instantly. Choose a case style, preview the result and copy or download your text.
Your text
Type or paste the text you want to convert.
Converted text
Your result appears here. You can edit it too.
Free online case converter
JIOPDF is a free case converter online tool for changing the capitalization of words, sentences and paragraphs. Convert text to uppercase, lowercase, title case, sentence case, alternating case or inverse case without installing software. The conversion runs in your browser, and you can copy the result or download it as a TXT file.
How to use the online Case Converter
Paste or type your text in the input box, select a capitalization style and review the converted result. Copy the result or download it as a text file. You can also edit the output and use it as input for another conversion.
Available text case styles
Choose the format that matches your writing task. The selected conversion is applied to the text and the result can be edited before you copy or save it.
- Uppercase: Converts letters to capitals.
- Lowercase: Converts letters to small letters.
- Title Case: Capitalizes the first letter of each word.
- Sentence case: Capitalizes the first letter after sentence punctuation.
- Capitalized Case: Capitalizes each word while keeping the remaining letters lowercase.
- Alternating Case: Alternates lowercase and uppercase letters.
- Inverse Case: Switches uppercase letters to lowercase and lowercase letters to uppercase.
Case converter frequently asked questions
Is this Case Converter free?
Yes. You can convert text between the supported capitalization styles for free in your browser.
Can I convert a large block of text?
Yes. Paste a block of text into the input box. Processing is performed in your browser, though very large text may depend on your device's available memory.
Does the tool change numbers or punctuation?
Case conversion changes letters. Numbers and punctuation are generally kept as they are.
Can I copy or download the converted text?
Yes. Use Copy result to copy the output or Download TXT to save it as a plain text file.
What is the difference between title case and sentence case?
Title Case capitalizes the first letter of each word. Sentence case capitalizes the first letter at the beginning of a sentence and converts the remaining letters to lowercase.
Can I convert uppercase to lowercase?
Yes. Paste uppercase text and select the lowercase option to convert its letters to lowercase instantly.