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Case Converter

Instant text case conversion: uppercase, lowercase, transliteration and URL slug generation.

Processing... 0%
Scanning text blocks
Splitting sentence structures
Transforming registers
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Result

Are you familiar with the situation when you accidentally wrote text with Caps Lock on or copied a title that you need to turn into a link (slug) for a site?

With this tool, you will be able to change the case of letters in a fraction of a second completely confidentially (the text is not sent to the server, but processed locally). No more rewriting everything manually.

The tool supports classic formats (UPPERCASE, lowercase, As in Sentences, Every Word in Capital), as well as unique modes: Cyrillic to Latin transliteration and creation of clean URL-slugs for web pages.

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Executed in Browser

Your files and inputs never leave this device. Processing runs completely offline. 100% Secure.

Accepted Formats & Rules

  • Supports Title, UPPER, lower, Sentence, Alternating, and Slug case.
  • Live statistics: displays word and character counts.
  • Clipboard integration.

Key Benefits

✓ Client-side tool: Your text is never sent across any network, securing sensitive text data.
✓ Grammar Sentence Case: Capitalizes sentences precisely based on terminal punctuation (., ?, !).
✓ Slug Generator: instantly builds clean, lowercase web URL slugs.

Use Cases

  • • Have you accidentally typed text with Caps Lock and want to make it normal?
  • • Need to quickly create a nice and clean URL slug from your article title?
  • • Do you want to standardize headers or variable names in your code (CamelCase, snake_case)?