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
, andPascalCase
. - 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
- Paste or type your text into the Input box.
- Click any conversion button (e.g., UPPERCASE, Title Case).
- Get the transformed text in the Result box.
- 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.