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Case Converter Online

Change your text between lowercase, UPPERCASE, Title Case, Sentence Case, camelCase, and snake_case instantly while tracking text metrics.

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Words
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Characters
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Sentences
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Paragraphs

Why use our Case Converter?

Need to capitalize text variables, format repository titles, or count exact character lengths for social posts? Composing case structures manually is slow and error-prone.

Our online Case Converter transforms string syntax formats instantly. Best of all, because all calculations occur in browser-local memory, your input copy blocks remain 100% private.

Privacy Guaranteed
100% client-side execution. Your pasted strings are never transmitted or stored.
Live Metrics
Displays instant real-time metrics for word, character, sentence, and paragraph counts.
Case Transformers
Convert words easily to UPPERCASE, lowercase, Title Case, camelCase, and snake_case.
Fast Copy/Download
Copy your reformatted output to clipboard with one click, or export as a .txt file.

Frequently Asked Questions

What text cases are supported?
We support standard typography formats: UPPERCASE, lowercase, Title Case (capitalizes the first letter of each word), Sentence Case (capitalizes the start of sentences), along with developer styles like camelCase and snake_case.
How does the word counter work?
The word counter parses text patterns client-side using JavaScript regex selectors. It filters multiple spaces and line-breaks to provide an exact count of words, characters, sentences, and paragraphs.
Is my document text secure?
Yes. All conversions and counts take place in memory directly inside your web browser. No text files or input fields are transmitted or saved on external servers.