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Developer ToolPopular Text Tool

Case Converter

Transform text into writing cases and developer-friendly naming formats instantly and privately.

11 case stylesCopy + downloadUndo history

Input Text

Type or paste text to transform

0 words0 characters

Converted Output

Choose a conversion style above

0 words0 characters

Writing Cases

UPPERCASE, lowercase, Title Case, Sentence case, Capitalize Words, and tOGGLE cASE for documents and content.

Developer Cases

camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE for variables, classes, URLs, and constants.

One text, every naming style

Clean headings, normalize pasted copy, prepare identifiers, generate URL slugs, or switch code naming conventions without manually editing every word.

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What is Case Converter?

Case Converter changes existing text between uppercase, lowercase, title case, sentence case, and other naming styles. It saves editors and developers from manually correcting capitalization across headings, labels, identifiers, or lists.

How to use Case Converter

  1. 1.Paste the text whose capitalization needs correction.
  2. 2.Choose sentence case, title case, uppercase, lowercase, camel case, or another available mode.
  3. 3.Inspect names, acronyms, and technical terms that require intentional capitalization.
  4. 4.Copy the transformed text into the destination document or codebase.

Key features

  • ✓Multiple case modes cover prose, headings, labels, and identifiers.
  • ✓Line breaks and basic punctuation remain in place during conversion.
  • ✓Instant preview makes it easy to compare alternative styles.
  • ✓Local transformation avoids submitting the text to an external language service.

Common use cases

  • Normalize headings imported from an all-caps document.
  • Convert a phrase into camelCase for a variable name.
  • Fix inconsistent capitalization in spreadsheet labels.
  • Prepare sentence-case copy for a user interface.

Frequently asked questions

What is the difference between title case and sentence case?

Title case capitalizes important words in a heading; sentence case generally capitalizes only the first word and proper nouns.

Will case conversion correct names and acronyms?

Automated rules cannot identify every proper name or brand. Review items such as iPhone, SQL, and personal names afterward.

Can I convert text to camelCase?

Yes, when that mode is selected the words are joined and later words begin with capitals. Check symbols and existing identifiers manually.

Does the tool change punctuation?

Its purpose is capitalization, so ordinary punctuation and line breaks are retained wherever possible.