Case Converter

Case Converter

Use this free Case Converter to change text between uppercase, lowercase, Title Case, Sentence case, and toggle case. Paste or type your text into the tool above, choose a conversion style, and the converted text appears instantly.

You can use it to fix inconsistent capitalization, convert lowercase text to uppercase, change all caps to lowercase, or quickly format text into another letter case.

 How to Convert Text Case

To change the capitalization of your text:

1. Paste or type your text into the input box.
2. Choose UPPERCASE, lowercase, Title Case, Sentence case, or tOGGLE cASE.
3. Review the converted text in the result area.
4. Copy the result or download it as a .txt file.
5. Use Clear when you want to start with different text.

You can switch between the available case styles to find the format you need.

 Convert Text to UPPERCASE

Use the UPPERCASE option when you want to convert letters to capital letters.

For example:

Input: free online text tools
Output: FREE ONLINE TEXT TOOLS

This is useful when you need to convert to uppercase without manually retyping your text.

 Convert Uppercase to Lowercase

If your text is written in all caps, choose lowercase to change the letters to lowercase.

For example:

Input: THIS IS SAMPLE TEXT
Output: this is sample text

This makes it easy to convert from upper case to lower case in one step.

 Convert Lowercase to Uppercase

You can also change lowercase text into capital letters using the UPPERCASE option.

For example:

Input: convert this text
Output: CONVERT THIS TEXT

Instead of manually changing each letter, paste the complete text and select UPPERCASE.

 Capitalize Text with Title Case

The Title Case option capitalizes words in your text.

For example:

Input: free online case converter
Output: Free Online Case Converter

This can be useful when you want to quickly capitalize text for headings, labels, titles, or other text formatting.

 Convert Text to Sentence Case

Sentence case changes text into a sentence-style capitalization format.

For example, text entered with inconsistent capitalization can be converted into a cleaner sentence-style format using the Sentence case option.

Use this option when ordinary sentence capitalization is more appropriate than uppercase or Title Case.

Toggle Letter Case

The tOGGLE cASE option reverses the capitalization of letters.

For example:

Input: Hello World
Output: hELLO wORLD

Uppercase letters become lowercase, while lowercase letters become uppercase.

Uppercase vs Lowercase vs Title Case

The same text can look very different depending on the selected case:

UPPERCASE: FREE ONLINE TOOLS
lowercase: free online tools
Title Case: Free Online Tools

Choose the format that best matches how you plan to use the text.

More Case Conversion Tools

For specialized formatting, you can also use the Camel Case Converter to turn spaced text, snake_case, or kebab-case into camelCase.

If you have other dedicated case-format tools already on TextNivo—such as Pascal Case or Snake Case—you can link them naturally in this section too.

 Private Browser-Based Case Converter

Your text is processed directly in your browser. You don’t need to create an account or upload a document.

Paste your text, choose a case style, copy or download the converted result, and clear the input when you’re finished.