Free Case Converter Online 2026 — UPPERCASE, camelCase, snake_case & More

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Free Case Converter — 12 Text Formats

UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case and more — instantly.

Case conversion is one of those small but constant tasks in development and writing. Renaming variables, formatting titles, cleaning imported data — our case converter handles 12 different text transformations in one click, with a live preview that updates as you type.

All 12 Case Formats

  • UPPERCASE — all capital letters (HELLO WORLD)
  • lowercase — all small letters (hello world)
  • Title Case — first letter of each word capitalised (Hello World)
  • Sentence case — first letter of each sentence capitalised
  • camelCase — used in JavaScript variables (helloWorldToday)
  • PascalCase — used in class names and components (HelloWorldToday)
  • snake_case — used in Python, databases (hello_world_today)
  • kebab-case — used in CSS, HTML slugs (hello-world-today)
  • CONSTANT_CASE — used for constants (HELLO_WORLD_TODAY)
  • dot.case — used in some configs (hello.world.today)
  • aLtErNaTe CaSe — alternating upper/lower
  • Reverse CASE — inverts existing capitalisation
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Also try: Word Counter and Lorem Ipsum Generator.

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