Text Case Converter — Uppercase, Lowercase, Title Case & More

Use this free online Text Case Converter to switch your content between common and developer-friendly cases: UPPERCASE, lowercase, Title Case, Sentence case, Capitalized Case, snake_case, kebab-case, camelCase, and PascalCase. Everything runs securely in your browser (client-side), so your text never leaves your device.

Why use a Text Case Converter?

  • Writers & Editors: Fix inconsistent casing, format headings, and improve readability.
  • Students: Prepare clean, properly formatted assignments.
  • Developers: Generate identifiers in snake_case, kebab-case, camelCase, and PascalCase.
  • SEO & Marketing: Standardize titles, meta text, and social captions quickly.

Supported Conversions

  • UPPERCASE — MAKE EVERYTHING UPPERCASE
  • lowercase — convert everything to lowercase
  • Title Case — Capitalizes Important Words (skips minor words unless first/last)
  • Sentence case — Capitalizes the first letter of sentences
  • Capitalized Case — Capitalizes the first letter of every word
  • snake_case — developer-friendly identifiers
  • kebab-case — perfect for URLs and slugs
  • camelCase — common in JavaScript variables
  • PascalCase — common in class and component names
  • Alternating CaSe — fun formatting for emphasis
  • Invert cASE — flips the casing of each letter
  • Clean Text — trims edges, collapses extra spaces, and normalizes line breaks

How to Use

  1. Paste or type your text into the Input box.
  2. Click any conversion button (e.g., UPPERCASE, Title Case).
  3. Get the transformed text in the Result box.
  4. Use Copy or Download to export, or Swap to continue editing.

Keyboard Shortcuts

  • Ctrl/Cmd + 1 — UPPERCASE
  • Ctrl/Cmd + 2 — lowercase
  • Ctrl/Cmd + 3 — Title Case
  • Ctrl/Cmd + 4 — Sentence case
  • Ctrl/Cmd + 5 — Capitalized Case
  • Ctrl/Cmd + Z — Undo (result area)
  • Ctrl/Cmd + Y or Ctrl/Cmd + Shift + Z — Redo (result area)

Live Statistics

As you type, you’ll see lines, words, characters, and sentences update in real time. Great for social captions, meta descriptions, and content limits.

Privacy & Performance

This tool works entirely in your browser (no server upload). It’s fast, private, and ideal for sensitive content.

Tips for Best Results

  • Use Clean before converting to remove stray spaces and line breaks.
  • For developer cases, start from clean, punctuation-free text.
  • Title Case automatically handles common minor words like “the”, “of”, and “and”.

Examples

Input:  the quick brown FOX jumps over THE lazy dog.
Title Case → The Quick Brown Fox Jumps over the Lazy Dog.
Sentence case → The quick brown fox jumps over the lazy dog.
snake_case → the_quick_brown_fox_jumps_over_the_lazy_dog
camelCase → theQuickBrownFoxJumpsOverTheLazyDog

Common Use Cases

  • Fix inconsistent headings before publishing.
  • Generate slugs and identifiers for code and URLs.
  • Standardize copy for social media and ads.