Case Converter

Convert text between different case formats: uppercase, lowercase, title case, and more

0 characters

Text Input

Live Preview

0 formats

General Text

UPPERCASE
Convert to all uppercase
lowercase
Convert to all lowercase
Capitalize Words
Capitalize each word
Sentence case
Capitalize first letter only
Title Case
Proper title capitalization

Programming

camelCase
JavaScript, Java variables
PascalCase
C#, Pascal class names
snake_case
Python, Ruby variables
kebab-case
URLs, CSS classes
CONSTANT_CASE
Constants, environment variables

Special

dot.case
Object properties, config
path/case
File paths, URLs
aLtErNaTiNg cAsE
Alternating character case
iNvErSe CaSe
Flip case of each character
Train-Case
Hyphenated with capitals

Professional Text Processing Features

Everything you need to work with Text data efficiently and professionally

15+ Format Support

Complete coverage of text cases including programming conventions like camelCase, snake_case, kebab-case, and document formats.

Real-time Preview

Instantly see all format variations as you type with live preview panels showing results in real-time.

Developer Optimized

Built specifically for programming workflows with conventions used in JavaScript, Python, Java, C#, and more languages.

Monaco Editor Integration

Professional code editor experience with syntax highlighting, themes, and advanced text manipulation features.

Bulk Processing

Handle large text documents, upload files, and process multiple lines while maintaining formatting structure.

Privacy Focused

All text processing happens locally in your browser. Your data never leaves your device.

How It Works

Simple steps to process your text like a pro

1

Input Text

Type, paste, or upload your text into the Monaco editor with full syntax support.

2

Live Preview

Watch real-time conversion across all 15+ formats as you type or edit.

3

Select Format

Click on any format category or specific conversion to copy the result.

4

Use Anywhere

Copy formatted text to use in your code, documents, or any application.

Professional Text Formatter & Validator

Text processing runs entirely in your browser — no uploads, no accounts, no limits.

Processing method

Use this tool’s examples, syntax limits and source documentation to understand its output.

Key Technical Features:

  • • 15+ naming convention formats supported
  • • Full Unicode support for international characters
  • • Monaco Editor integration for professional editing
  • • Real-time processing with optimized algorithms
  • • Smart preservation of acronyms and special terms

Processing and output

Check the stated processing method and compare the result with your input before using it.

Security & Privacy:

  • • 100% client-side processing - no server uploads
  • • Secure HTTPS connection for all operations
  • • Transparent conversion algorithms

Comprehensive Format Support

Document Formatting

UPPERCASE - Headlines, emphasis
Title Case - Proper titles
Sentence case - Body text

Programming Conventions

camelCase - JavaScript, Java
snake_case - Python, Ruby
PascalCase - C#, Pascal
kebab-case - CSS, URLs

Special Formats

CONSTANT_CASE - Constants
dot.case - Config files
path/case - File paths

Trusted Across Industries

Development & Engineering

  • Variable and function naming
  • API endpoint and route naming
  • Database schema and table naming
  • Configuration file formatting

Content Creation

  • Article titles and headings
  • Social media post formatting
  • Marketing material consistency
  • Document structure formatting

Why Professionals Choose EZ Formatter

100%
Client-side processing
0
Data sent to servers
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Your data stays in your browser

Frequently Asked Questions

Common questions about Case Converter formatting answered

We support 15+ formats including camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Train-Case, Title Case, and more specialized naming conventions.

Yes, the smart detection system preserves acronyms like XML, HTML, API, and URL during conversion, keeping them recognizable in the output format.

Absolutely. The batch processing feature handles multiple lines simultaneously, applying the same conversion rule across all lines while preserving line structure.

As you type or paste text, all 15+ format conversions are displayed simultaneously in real-time preview panels, letting you compare and select the best format instantly.

Yes, many developers use it to standardize naming conventions across projects - converting snake_case database columns to camelCase for JavaScript, or generating kebab-case API endpoints.

camelCase (JavaScript functions and Java methods), PascalCase (classes in most languages), snake_case (Python and Ruby identifiers), kebab-case (CSS classes, URLs, file names), CONSTANT_CASE (environment variables and enums), and Title Case With Spaces. The converter applies each style's exact rules - camelCase lowercases the first word, PascalCase capitalizes all words.

Input like "parse HTTP2 request" splits into words on case boundaries and digits, so HTTP2 stays one token and becomes http2Request in camelCase or PARSE_HTTP2_REQUEST in constant case. Acronyms are never special-cased mid-conversion - URL becomes Url when Pascal-cased, matching the behavior of standard style guides like Google's Java Style.

Word boundaries come from four signals: spaces, hyphens, underscores, and lower-to-upper case transitions. A string like "XMLHttpRequest" splits at the l-to-H boundary into xml + http + request. If the split looks wrong, check for consecutive capitals - the algorithm treats each new uppercase run after a lowercase letter as a new word, which is the convention codifiers like Expressive Words rely on.

{-- * External Resources Component(#19 Phase 3b 内容佐证工程) * 工具页「权威引用」区块:RFC / W3C / WHATWG / ECMA / IANA / 官方规范站 / 官方语言文档 / Wikipedia。 * * - 接受 :slug 属性 → 经 config/tool-sources.php 家族矩阵渲染该工具的权威引用 * - slug 未命中映射时不渲染(无权威来源的工具静默跳过) * - 链接 title 保持英文(引用源专名);description 经 * common.resources.descriptions.{key} 本地化,lang 未命中回退英文(线上不裸奔) * - 链接保持 dofollow(rel="noopener noreferrer") * * @param string|null $slug --}}

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