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Case Converter - Online Text Case Changer

All processing happens in your browser. Your text is never sent to our servers.

How to change text case (uppercase/lowercase/title case) When you need consistent headings, labels, or identifiers, changing case manually is slow and easy to mess up. Convert text case in your browser with no installation. Useful for writers, marketers, and developers. Useful when: • fixing headings • normalizing variable names • formatting pasted text Copying text from documents or reusing identifiers often requires changing casing (titles, headings, variable names, URLs), and doing it manually is slow and error - prone.

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, and more. Change text case instantly.

Show detailed guide & explanations▼

Why you may need this tool

Different contexts require different casing rules: titles, labels, headings, file names, and code identifiers often follow distinct conventions. Converting by hand is error - prone—acronyms, separators, and multi - word phrases easily become inconsistent. A case converter applies a consistent rule quickly, reducing cleanup work and helping you keep naming and writing conventions aligned across documents and systems.

How to use

Paste the text, choose the target case, and review the result for acronyms and proper nouns.

  1. Paste your text in the input area
  2. Choose the case style you want
  3. View the converted text instantly
  4. Copy the result

Examples

Unifying headings across a document or slide deck
Mixed casing across headings can make a document feel inconsistent. Converting headings to one rule helps presentation quality and reduces manual polishing.
Converting labels for UI and configuration keys
UI labels and config keys often require different casing conventions. A converter helps you switch between conventions while keeping the underlying words consistent.

Benefits & differentiators

You can standardize large lists or long sentences in one step, which is useful for documentation, UI labels, and content workflows. Applying the same rule consistently reduces review effort and avoids subtle inconsistencies. For technical naming, consistent casing improves readability and maintainability, especially when names move between code, configuration, and documentation.

Who this is for

Recommended if you: - maintain consistent headings and labels across content - convert naming conventions for code or configuration - handle lists of terms and want a uniform style - want fewer manual casing mistakes during review

FAQ

What case options are available?
We offer UPPERCASE, lowercase, Title Case (Each Word Capitalized), Sentence case, camelCase, PascalCase, snake_case, and kebab - case.
What is Title Case?
Title Case capitalizes the first letter of each word. 'hello world' becomes 'Hello World'. Perfect for headlines and titles.
What is Sentence case?
Sentence case capitalizes only the first letter of each sentence. 'HELLO. WORLD.' becomes 'Hello. World.'
Is my text private?
Yes. All conversion happens locally in your browser. Your text is never sent to our servers.
Does this support international characters?
Yes, we fully support Unicode including accented characters, German umlauts, and other international letters.

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