Free Letter Case Converter - Uppercase, Lowercase, Title Case
Convert text to uppercase, lowercase, sentence case, title case, camelCase, snake_case, kebab-case, underscores, hyphens, and copy the result instantly.
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What this tool is for
Paste text, choose uppercase, lowercase, sentence case, title case, camelCase, snake_case, kebab-case, or cleanup actions, and copy the converted text from the first screen without signing in.
Related tools
Continue with common ToolNest utilities
Letter Case Converter is part of a wider browser toolbox. These links help users and crawlers move from this page into nearby daily tasks.
Frequently asked questions
Is Letter Case Converter free?
Yes. ToolNest provides Letter Case Converter as a free browser-based utility.
Does Letter Case Converter require an account?
No account is required. Open the tool and use it directly in your browser.
Does Letter Case Converter replace the input text or use a separate output box?
By default, the converted result replaces the input text so mobile users can copy it immediately. If you want to keep the original text visible, open Options and turn on the separate output box.
Which text case formats does Letter Case Converter support?
It supports uppercase, lowercase, first-letter capitalization, every-word capitalization, sentence case, title case, spaces to underscores, underscores or spaces to camelCase, camelCase to underscores, camelCase to spaces, spaces to hyphens, underscores to hyphens, and cleanup actions.
Can Letter Case Converter keep acronyms and brand names unchanged?
Yes. The unchanged-word list can preserve acronyms, brand names, and product names during first-letter, every-word, sentence-case, and title-case conversions.
How do I use Letter Case Converter?
Open the Letter Case Converter page, enter or paste your values, use the visible controls, and copy the result from the first working area. It is grouped with Text Tools for quick browsing.
Can I copy results from Letter Case Converter?
Yes. ToolNest tools are designed around copy-ready output, so you can reuse the result in documents, spreadsheets, code editors, forms, or messages without creating an account.