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Case Converter – Change Text Case Online
Use this free case converter to change the case of your text in one click. Paste your text, pick a style, and copy the result. It works in your browser, so your text stays private.
What Is a Case Converter?
A case converter changes how the letters in your text look. It can make letters big, small, or mixed.
For example, you typed a whole paragraph with Caps Lock on by mistake. You do not need to type it again. Paste it here, click one button, and it is fixed.
How to Use the Case Converter
- Paste or type your text in the box.
- Pick the case you want.
- Copy the new text.
That is all. No sign-up and no installation needed.
Text Cases You Can Use
Here are the main cases, with an easy example for each. We use the text “my first blog post”.
| Case | What It Does | Example |
|---|---|---|
| UPPERCASE | Makes every letter big | MY FIRST BLOG POST |
| lowercase | Makes every letter small | my first blog post |
| Title Case | Makes the first letter of each word big | My First Blog Post |
| Sentence case | Makes only the first letter of a sentence big | My first blog post |
| camelCase | Joins words together. Each new word starts with a big letter | myFirstBlogPost |
| snake_case | Joins words with an underscore. All letters are small | my_first_blog_post |
You can also use the tool for more styles. Check the buttons above to see all of them.
When Should I Use Each Case?
- UPPERCASE: For short, strong words, like warnings or labels.
- lowercase: For emails, usernames, and clean text.
- Title Case: For headings, blog titles, and book names.
- Sentence case: For normal writing, like paragraphs and captions.
- camelCase: For names of variables in code, like JavaScript.
- snake_case: For names in code, like Python, and for database fields.
Why Use Our Case Converter?
- Free forever: No limits and no hidden charges.
- Fast: You see the result right away.
- Many styles: Normal writing styles and coding styles in one place.
- 100% private: Everything runs in your browser. Nothing is uploaded.
- Works on all devices: Mobile, tablet, and desktop.
Who Can Use This Tool?
- Students: Fix the text in your homework and assignments.
- Writers and bloggers: Make headings look neat.
- Office workers: Fix text in emails and reports.
- Developers: Change names to camelCase or snake_case.
After you fix your text, you can check how long it is with our Word Counter. For more simple guides, visit our blog, or explore all free tools on MeraTool.
Frequently Asked Questions (FAQ)
What is a case converter?
A case converter is a tool that changes the letters of your text to big, small, or mixed style.
How do I change lowercase to uppercase?
Paste your text, click the UPPERCASE button, and copy the result.
How do I change uppercase to lowercase?
Paste your text, click the lowercase button, and copy the result.
What is Title Case?
Title Case makes the first letter of each word big. It is often used for headings and titles.
What is Sentence case?
Sentence case makes only the first letter of each sentence big. It is the style used in normal writing.
What is camelCase?
camelCase joins words together with no spaces. The first word is small, and every next word starts with a big letter. Example: myFirstBlogPost.
What is snake_case?
snake_case joins words with an underscore. All letters are small. Example: my_first_blog_post.
Is this case converter free?
Yes. It is completely free, and you do not need an account.
Is my text safe?
Yes. The tool runs entirely in your browser. Nothing you type is uploaded or stored on our servers.
Can I use it on my phone?
Yes. It works on all modern browsers on mobile and desktop.