Case Converter Online — camelCase, snake_case

Mastering Naming Conventions in Programming

Whether you're writing code, organizing files, or naming database columns, adhering to standard casing conventions is crucial for readability and consistency. The Stringra Case Converter is designed to effortlessly transform plain text or messy variables into strictly formatted string cases.

Common Programming Cases Explained

camelCase: Words are joined without spaces, and each word except the first begins with a capital letter (e.g., userFirstName). This is the standard for variables and functions in JavaScript, Java, and C#.
PascalCase (UpperCamelCase): Similar to camelCase, but the very first letter is also capitalized (e.g., UserAccountService). Widely used for Classes, Interfaces, and component names in React/Astro.
snake_case: Words are all lowercase and separated by underscores (e.g., created_at_timestamp). Extremely common in Python, Ruby, and SQL databases.
SCREAMING_SNAKE_CASE: All uppercase with underscores (e.g., MAX_RETRY_LIMIT). Universally used across almost all languages to denote immutable constants or environment variables.
kebab-case: Words are all lowercase and separated by dashes (e.g., profile-picture-url). This is the standard for URLs, HTML attributes, and CSS class names because dashes are very URL-friendly.

Text and Typography Cases

In addition to code formats, this tool provides standard typographical conversions:

Title Case: Capitalizes the first letter of almost every word. Perfect for blog post titles and UI headers.
Sentence case: Capitalizes only the first letter of the string. Good for cleaning up overly capitalized paragraphs.
Toggle Case & Alternating Case: Fun formats like tOGGLE cASE or aLtErNaTiNg CaSe (popular in memes like the mocking SpongeBob format).

Because processing runs locally using efficient regex parsing and array mapping, conversions update in real-time as you type, with zero lag and total privacy.

Frequently Asked Questions

How many cases are supported?

We support 13 distinct cases including programming standards like camelCase, snake_case, PascalCase, kebab-case, and text standards like Title Case, UPPERCASE, lowercase, and Sentence case.

Is this tool completely private?

Yes. The text conversion happens via JavaScript in your local browser. Your input string is never transmitted to any external server.

How are words identified in my text?

Our algorithm splits your text based on spaces, punctuation, underscores, dashes, and transitions from lowercase to uppercase letters (to properly split camelCase).

Can I convert large blocks of code?

Yes, you can paste large texts, but keep in mind that applying cases like camelCase to long paragraphs will merge all words into a single long contiguous string without spaces.

What is SCREAMING_SNAKE_CASE?

It is a convention where words are all uppercase and separated by underscores. It's heavily used in programming for declaring constant values (e.g., MAX_LIMIT).

What is Toggle Case?

Toggle case flips the case of every letter in the string. For example, 'Hello' becomes 'hELLO'.

Do you save my text history?

No, since there's no server involved, we don't save any history. Once you close or reload the tab, the text is gone.

String Case Converter