An online case converter tool lets you paste any text and instantly transform it into different formats such as sentence case, title case, UPPERCASE, lowercase, snake_case, kebab-case, camelCase, PascalCase, and CONSTANT_CASE. Everything runs locally in your browser, so no data is uploaded. This is the fastest way to reformat text for writing, coding, or design.
Case Converter Tool
Paste text and get instant conversions like sentence, title, upper, lower, snake, kebab, camel, Pascal, and constant.
Do not get lost! Hit Ctrl+D (Windows) or Command+D (Mac) to bookmark this tool for instant access.
What Is a Case Converter
A case converter is a simple utility that changes the capitalization style of text. Writers use it for readability, developers use it for code variables, and students use it for formatting essays or assignments. Instead of manually editing text, you can instantly convert entire paragraphs, code snippets, or titles with one click.
Why Use a Case Converter
You need a case converter when you:
- Paste text in the wrong format and want to fix it instantly
- Prepare titles for blog posts, essays, or YouTube videos
- Generate variable names for coding in camelCase or snake_case
- Standardize data in spreadsheets or scripts
- Reformat entire paragraphs for readability
Instead of editing letter by letter, this tool saves time and prevents mistakes.
How to Use This Case Converter Step by Step
1. Paste or type your text in the input box
2. Click Convert
3. Scroll down to see multiple output boxes:
- Sentence case
- Title Case
- UPPERCASE
- lowercase
- snake_case
- kebab-case
- camelCase
- PascalCase
- CONSTANT_CASE
4. Copy the output you need and use it immediately
5. Click Clear to reset and start again
Example 1: Convert a Blog Title
Input:
how to use javascript for web developments
Output:
Sentence case: How to use javascript for web development
Title Case: How to Use Javascript for Web Development
UPPERCASE: HOW TO USE JAVASCRIPT FOR WEB DEVELOPMENT
lowercase: how to use javascript for web development
snake_case: how_to_use_javascript_for_web_development
kebab-case: how-to-use-javascript-for-web-development
camelCase: howToUseJavascriptForWebDevelopment
PascalCase: HowToUseJavascriptForWebDevelopment
CONSTANT_CASE: HOW_TO_USE_JAVASCRIPT_FOR_WEB_DEVELOPMENT
Example 2: Convert a Variable Name
Input:
user login data
Output:
camelCase: userLoginData
PascalCase: UserLoginData
snake_case: user_login_data
kebab-case: user-login-data
CONSTANT_CASE: USER_LOGIN_DATA
This is very useful for developers working across multiple programming languages.
Example 3: Convert a Sentence for Readability
Input:
lorem ipsum dolor sit amet consectetur adipiscing elit
Output:
Sentence case: Lorem ipsum dolor sit amet consectetur adipiscing elit
Title Case: Lorem Ipsum Dolor Sit Amet Consectetur Adipiscing Elit
UPPERCASE: LOREM IPSUM DOLOR SIT AMET CONSECTETUR ADIPISCING ELIT
lowercase: lorem ipsum dolor sit amet consectetur adipiscing elit
This saves time when preparing essays, reports, or presentations.
Features of This Case Converter Tool
- Converts to nine case formats instantly
- Works for long paragraphs and not just single words
- Handles spacing, punctuation, and line breaks correctly
- Works on desktop and mobile
- No internet connection needed after loading
- Privacy-friendly: everything happens locally
Common Use Cases
- Writers and bloggers: fix titles and headings for SEO readability
- Students: format essays in proper capitalization style
- Developers: generate variable names in camelCase or snake_case
- Designers: reformat slogans or text blocks quickly
- Data analysts: clean text fields in datasets
Quick Guide to Case Styles
- Sentence case: Capitalizes the first letter of the first word. Example: This is a sentence.
- Title Case: Capitalizes important words in a title. Example: Learning Regex in JavaScript
- UPPERCASE: All letters capitalized. Example: HELLO WORLD
- lowercase: All letters lowercase. Example: hello world
- snake_case: Underscores between words. Example: user_name_id
- kebab-case: Hyphens between words. Example: user-name-id
- camelCase: First word lowercase, each following word capitalized. Example: userNameId
- PascalCase: Every word capitalized. Example: UserNameId
- CONSTANT_CASE: All uppercase with underscores. Example: USER_NAME_ID
Frequently Asked Questions (FAQs)
Q: What does this case converter do
A: It changes text into different capitalization formats such as sentence case, title case, and coding styles like camelCase.
Q: Can I use it for long text
A: Yes, it works with entire paragraphs, not just single words.
Q: Does it support programming styles
A: Yes, you can convert text into snake_case, kebab-case, camelCase, PascalCase, and CONSTANT_CASE.
Q: Is my text uploaded anywhere
A: No, all conversions happen locally in your browser.
Q: Why is Title Case skipping words like “and” or “of”
A: Because style guides usually keep small words lowercase unless they start the title.
Q: Can I use it on mobile
A: Yes, it is fully responsive and works on phones and tablets.
Thank You Note
I know if you made it this far, you probably really needed this tool. I hope it saved you time and maybe even a bit of frustration. I keep building new tools every week, some small and some surprisingly powerful. You can check out all our free tools here and make sure to bookmark CodeForGeek so you never lose us.
If you have an idea for improvement or something is not working right, just email me at [email protected]. I actually read those messages, and if your suggestion makes sense, I will add it.
Thanks for sticking around till the end. Now go try out your result before you forget why you came here.
