Case Converter
Convert any block of text between UPPERCASE, lowercase, Title Case and Sentence case in one click with instant clipboard copy.
Result
Your result will appear here.
How to use Case Converter
- 1Paste or type your text into the input field.
- 2Select your desired capitalization format: UPPERCASE, lowercase, Title Case, or Sentence case.
- 3Review the converted output in the preview panel and click Copy to clipboard.
Key features
4 Standard Case Modes
Instantly convert between UPPERCASE, lowercase, Title Case (capitalized words), and Sentence case.
Regex-Powered Sentence Detection
Accurately capitalizes letters following sentence delimiters (periods, exclamation marks, question marks).
One-Click Clipboard Copy
Copy converted results directly to your clipboard with automatic confirmation feedback.
Preserves Internal Punctuation
Maintains hyphens, quotes, apostrophes, and spacing without stripping special formatting.
Examples & use cases
Article Title Formatting
Converting lowercase rough notes into clean publication Title Case
how to format json and validate syntax in the browser
How To Format Json And Validate Syntax In The Browser
Fixing Accidental Caps Lock
Converting accidental UPPERCASE shouting into natural Sentence case
CLIENT-SIDE UTILITIES RUN ENTIRELY IN LOCAL BROWSER MEMORY. NO DATA IS SENT TO SERVERS.
Client-side utilities run entirely in local browser memory. No data is sent to servers.
Code Constant Uppercase
Preparing uppercase environment constants
api_secret_encryption_key
API_SECRET_ENCRYPTION_KEY
Frequently asked questions
Helpful guides & tutorials
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