Free2BoxFree2Box

大小写转换器

在 camelCase、snake_case、kebab-case 等格式间转换

输入
在此输入或粘贴文字...
camelCase
PascalCase
snake_case
kebab-case
SCREAMING_SNAKE
Title Case
UPPERCASE
lowercase
dot.case

使用方法

1

粘贴或输入内容

在输入区域输入您的文字、代码或数据。

2

选择选项

选取要应用的转换方式或格式。

3

复制结果

一键将输出结果复制到剪贴板。

为什么使用此工具

100% 免费

没有隐藏费用,没有付费等级——所有功能完全免费。

无需安装

完全在浏览器中运行。无需下载或安装任何软件。

隐私且安全

您的数据永远不会离开您的设备。不会上传至任何服务器。

支持移动设备

完全响应式设计——在手机、平板或桌面电脑上均可使用。

Text Case Converter: Transform Text Between Any Case Format Instantly

Key Takeaways

  • Text case conversion saves significant time in writing, coding, and data processing — eliminating tedious manual reformatting.
  • Developers regularly need camelCase, snake_case, PascalCase, and kebab-case conversions when working across different programming language conventions.
  • Proper title case and sentence case improve the readability and professionalism of headlines, emails, and documents.

Text case formatting seems trivial until you need to convert an entire paragraph from ALL CAPS to sentence case, transform a list of database column names from snake_case to camelCase, or ensure consistent title capitalization across hundreds of headings. A text case converter handles these transformations instantly, supporting every common format from UPPERCASE and lowercase to developer-specific formats like camelCase, PascalCase, snake_case, and kebab-case.

Developers switch between 6+ case formats daily when working across JavaScript, Python, CSS, and database naming conventions

Developer Workflow

When to Use a Text Case Converter

1

Code Refactoring

Converting variable names between camelCase (JavaScript), snake_case (Python), PascalCase (C#), and kebab-case (CSS) when porting code between languages.

2

Content and SEO Writing

Ensuring consistent title case across blog post headings, converting pasted ALL CAPS text to proper sentence case, and formatting metadata.

3

Data Processing and Cleanup

Normalizing inconsistent text data from spreadsheets, databases, or CSV imports where names and labels have mixed casing.

4

Email and Professional Communication

Quickly fixing text accidentally typed in caps lock, converting to sentence case for professional emails and documents.

Tips for Text Case Conversion

Title Case has specific rules — articles (a, an, the) and short prepositions are typically lowercase unless they start the title.

camelCase removes spaces and capitalizes each word except the first. PascalCase is the same but capitalizes the first word too.

snake_case replaces spaces with underscores and lowercases everything — the Python and database naming convention.

When converting from ALL CAPS, use Sentence Case rather than Title Case for body text to maintain natural readability.

All text processing happens entirely in your browser. Your text is never transmitted to any server, ensuring complete privacy for sensitive content.

常见问题