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Word Case Swap

Convert text between different case formats instantly — no signup, no tracking.

edit_note Input

Choose a format

output Output

How to Convert Text Case Online

  1. Enter your text — paste or type any text into the input area.
  2. Pick a case format — choose from 8 options: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, or tOGGLE cAsE.
  3. See instant results — the converted text appears immediately below. Switch between formats to compare.
  4. Copy to clipboard — click the copy button to get the converted text ready to paste.

When to Use Word Case Swap

code

Programming conventions

Convert variable names between camelCase, snake_case, and kebab-case when switching between programming languages or coding standards.

title

Headlines and titles

Format article headlines, email subjects, and presentation titles in proper Title Case with one click.

table_chart

Data normalization

Standardize naming in spreadsheets and databases by converting entries to a consistent case format.

edit_note

Writing and editing

Fix accidental caps lock, convert ALL CAPS text to sentence case, or prepare text for different style guides.

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Frequently Asked Questions

Is Word Case Swap free?

Yes, it's completely free with no limits on usage.

Is my text sent to a server?

No. All conversions happen locally in your browser. Your data never leaves your device.

What case formats are supported?

UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and Toggle cASE.

How to convert camelCase to snake_case online?

Paste your camelCase text into Word Case Swap and select the snake_case option. The tool automatically detects word boundaries and converts the text instantly.

Can I convert an entire paragraph to Title Case?

Yes. Paste any amount of text and select Title Case. Every word will be capitalized — perfect for headlines, titles, and headings.

What is the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of every word (Hello World). Sentence case only capitalizes the first letter of each sentence (Hello world). Use Title Case for headings and Sentence case for body text.