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Text Case Converter — 14 Cases incl. camelCase & snake_case

Convert text between 14 cases — UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case, CONSTANT_CASE, and more.

Free No signup Client-side Privacy friendly Updated

How to use

  1. 1 Type or paste any text into the input box.
  2. 2 Every case variant updates instantly below.
  3. 3 Hover any card and click the copy icon to grab that specific variant.

Why use this tool

  • 14 cases in one view — see them all side-by-side instead of clicking through tabs.
  • Smart tokenisation — handles "XMLHttpRequest", "kebab-case", and "snake_case" inputs.
  • Title Case follows AP-style rules — small words (a, the, of, in) stay lowercase except at the start.
  • Runs in your browser. Free, no signup.

Frequently asked questions

What's the difference between Title Case and Capitalized Case?

Title Case (AP-style) keeps short words like "a", "the", "of" lowercase except at the start. Capitalized Case capitalizes every word regardless.

How does camelCase handle existing camelCase input?

The tokeniser detects word boundaries at case changes (e.g. "XMLHttpRequest" → x m l http request) and rejoins per the target case.

Is there a CONSTANT_CASE variant?

Yes — also known as SCREAMING_SNAKE_CASE. Common for environment variables and language constants.

What is Text Case Converter?

A Text Case Converter is a tool that rewrites text into a chosen letter-casing convention. It supports 14 cases, including UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, and CONSTANT_CASE, transforming the input on demand. It runs entirely in the browser, so the text being converted never leaves the user's device.

Features

14 case formats

From Title and Sentence case to programmer cases like camelCase and CONSTANT_CASE.

Programmer-friendly

camelCase, snake_case, kebab-case, and PascalCase for identifiers and keys.

100% private

Text is transformed locally and never uploaded.

Example

Input

hello world example

Output

camelCase:     helloWorldExample
snake_case:    hello_world_example
kebab-case:    hello-world-example
CONSTANT_CASE: HELLO_WORLD_EXAMPLE

Common use cases

  1. 1

    Rename identifiers

    Convert a label into snake_case or camelCase for variables, columns, or JSON keys.

  2. 2

    Fix inconsistent headings

    Normalize a list of titles to Title Case or Sentence case in one paste.

  3. 3

    Build slugs & constants

    Turn a phrase into kebab-case for URLs or CONSTANT_CASE for config keys.

How Text Case Converter compares to alternatives

Text Case Converter versus typical browser and desktop alternatives — features compared at a glance.
Feature Zerethon Tools Typical online tools Desktop apps
Signup required No Sometimes No
Text leaves device No Yes No
Case formats 14 cases 4–6 cases Varies
camelCase / snake_case / kebab Yes Sometimes Sometimes
Free Yes Yes Sometimes paid
Works offline Yes (after load) No Yes
Summary

Zerethon's text case converter rewrites text into 14 casing conventions — UPPERCASE, lowercase, Title, Sentence, camelCase, snake_case, kebab-case, CONSTANT_CASE, and more — instantly in your browser. Nothing is uploaded.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

References

Privacy

Your data never leaves your browser unless explicitly stated. Text Case Converter runs entirely client-side — no server upload, no logging, no tracking of your input.

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