String Case Converter & Slug Generator

Software Identifier Naming Conventions & URL Slug Guidelines

In software engineering, identifier naming conventions prevent naming collisions, define scope visibility, and communicate semantic intent. Because different programming ecosystems maintain rigid stylistic guidelines, refactoring between frontend TypeScript, backend Python, and SQL databases requires converting identifier casings frequently.

Industry Standards by Language

• JavaScript & TypeScript: Uses camelCase for variable and function names, PascalCase for classes and React components, kebab-case for CSS classes and package names, and CONSTANT_CASE for global constants.
• Python (PEP 8): Strictly enforces snake_case for functions and methods, PascalCase for classes, and UPPERCASE_WITH_UNDERSCORES for module-level constants.
• Rust: Enforces snake_case for functions, variables, and modules; UpperCamelCase for structs, enums, and traits; and SCREAMING_SNAKE_CASE for const and static values.
• SQL & Databases: snake_case is the undisputed standard for table and column names (e.g. created_at, order_items) to avoid case-sensitivity pitfalls across storage engines.

How to Build Clean, SEO-Friendly URL Slugs

A URL slug is the portion of a web address that identifies a particular page in human-readable keywords. According to Google Search Central best practices and RFC 3986:

• Use lowercase Latin alphanumeric characters (a-z, 0-9).
• Replace spaces and underscores with single hyphens (-). Google's search algorithms treat hyphens as word separators, whereas underscores can concatenate terms together.
• Strip non-ASCII accents and diacritics using Unicode Normalization Form D (NFD) (e.g. résumé becomes resume).
• Remove special punctuation characters (?, &, !, @, #).

Frequently Asked Questions

How does the converter handle acronyms like 'API' or 'HTTP'?

The tokenizer intelligently splits transitions between lowercase and uppercase characters while keeping multi-letter acronyms cohesive before casing rules are applied.

Can I process multiple lines at once?

Yes. Check the "Line-by-line mode" checkbox to treat every line in your input as an independent identifier.

Does any text leave my browser?

No. All string parsing and transformations run client-side in your browser.