Case Converter – Free Online Tool
Convert text between 12 case formats: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE, dot.case, path/case, and Inverse Case — with live preview and text stats.
What Is the Case Converter?
The Case Converter is a free online tool that instantly transforms text between 12 different letter-case formats. Whether you need UPPERCASE for headings, Title Case for blog titles, camelCase or snake_case for code variables, or kebab-case for URL slugs — one click converts your entire text without retyping a single character.
Which Case Formats Are Supported?
This tool supports all common text-case formats: UPPERCASE (all capitals), lowercase (all small), Title Case (capitalize major words), Sentence case (capitalize first word per sentence), camelCase (firstWordLower), PascalCase (FirstWordUpper), snake_case (underscores), kebab-case (hyphens), CONSTANT_CASE (upper underscores), dot.case (dots), path/case (slashes), and Inverse cASE (toggle each letter). Developers, writers, and data professionals will find every format they need.
How to Use the Case Converter
1. Type or paste your text into the input area on the left. 2. Click any of the 12 conversion buttons in the middle — your converted text appears instantly on the right. 3. Check the live text stats (characters, words, sentences, lines) below the input. 4. Click Copy to clipboard with one click, or continue converting to a different case. 5. Your recent conversions are saved in the History section for quick access.
Why Choose Our Case Converter?
Most case converters online support only 4-5 formats. Ours offers 12 formats including developer favorites like camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. It runs 100% in your browser with zero data collection, shows live text statistics, keeps a conversion history, and works on any device — no sign-up or installation required.
Who Benefits from This Tool?
Content writers formatting headlines and articles. Developers converting variable names between camelCase, snake_case, and PascalCase. SEO specialists creating URL-friendly kebab-case slugs. Data entry professionals fixing inconsistent capitalization. Students formatting papers. Anyone who accidentally left caps lock on and needs a quick fix.
Frequently Asked Questions
Everything you need to know about the Case Converter.
Will this fix text written accidentally in all caps?
Yes! Paste your all-caps text and click ‘lowercase’ or ‘Sentence case’ to instantly fix it without retyping.
What is the difference between Title Case and Sentence case?
Sentence case capitalizes only the first letter of each sentence. Title Case capitalizes the first letter of every major word (articles and prepositions stay lowercase). Use Sentence case for paragraphs and Title Case for headings.
What is the difference between camelCase, PascalCase, and snake_case?
camelCase starts lowercase and capitalizes each subsequent word (myVariableName). PascalCase capitalizes every word including the first (MyClassName). snake_case uses underscores between lowercase words (my_variable_name). These are naming conventions used in different programming languages.
Is there a text length limit?
No strict limits. The converter processes text entirely in your browser, so it can handle thousands of words or large documents instantly without any server-side processing.
Is my text kept private?
Yes, completely. All conversions happen 100% client-side in your browser. Your text is never sent to any server, stored, or logged.
Can I use this for code variable naming?
Absolutely. Developers frequently use this tool to convert between camelCase (JavaScript), snake_case (Python/Ruby), kebab-case (CSS/URLs), PascalCase (C#/Java classes), and CONSTANT_CASE (environment variables).