Case Converter

Convert text case online

What is Case Converter?

The Case Converter is a free online tool that transforms text between uppercase, lowercase, title case, sentence case, and other formats instantly in your browser. Inconsistent text casing is a common problem when working with data from multiple sources, copying content between systems, or cleaning up user-submitted text. Manually fixing the case of hundreds of lines is tedious and error-prone. This tool handles any amount of text in one click — whether you need to capitalize every word in a list of product names, convert a block of ALL CAPS text to readable sentence case, or standardize database entries to a consistent format. It preserves numbers, punctuation, and special characters while only transforming the letter case, making it safe to use on any type of content.

Why Use DevBench Case Converter?

DevBench Case Converter runs entirely in your browser — your data never leaves your device. No sign-up, no limits, no watermarks, completely free forever.

How to Use Case Converter

  1. Paste or type text in the input field
  2. Click "UPPERCASE" to convert all letters to capitals
  3. Click "lowercase" to convert all letters to small case
  4. Click "Title Case" to capitalize first letter of each word
  5. Click "Sentence case" to capitalize first letter of sentences

Examples

  • Convert "hello world" to "HELLO WORLD"
  • Convert "HELLO WORLD" to "hello world"
  • Convert "hello world" to "Hello World"
  • Convert "hello. world" to "Hello. World"
  • Convert mixed case text to consistent format

Use Cases

  • Formatting text for headings and titles
  • Converting database text to proper case
  • Formatting names and addresses
  • Converting code comments to proper case
  • Formatting text for documentation
  • Converting CSV data to consistent case
  • Formatting text for presentations
  • Converting user input to standard format
  • Formatting text for reports
  • Converting text for data cleaning

Frequently Asked Questions

What is Title Case?

Title Case capitalizes the first letter of each major word, commonly used for headings and titles.

What is Sentence case?

Sentence case capitalizes only the first letter of each sentence, like normal writing.

Does it work with special characters?

Yes, the tool preserves special characters, numbers, and punctuation while converting letter case.

Can it handle multiple languages?

Yes, it works with all languages including accented characters and non-Latin scripts.

What about acronyms in Title Case?

The tool capitalizes each word. You may need to manually adjust acronyms like "API" or "URL".