Free Case Converter
Convert your text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and kebab-case with a single click.
What is the case converter?
A case converter is a free tool that changes the letter case of your text — for example turning it into UPPERCASE, lowercase, Title Case or Sentence case — without retyping it. You paste your text, pick a style, and it rewrites it instantly. Slashit's case converter also handles programming styles like camelCase, snake_case and kebab-case, and runs entirely in your browser so nothing is uploaded. It's a quick fix for text that came in the wrong case, headings that need title casing, or variable names that need reformatting.
How our free case converter works
Paste your text
Add the text you want to reformat — a sentence, a heading or a whole paragraph.
Pick a case
Choose from UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case or kebab-case.
Copy the result
The converted text appears instantly. Copy it with one click and paste it wherever you need it.
What can you use the case converter for?
Fixing text typed with caps lock on
Rather than retyping a paragraph that came out in capitals, paste it in and convert to sentence case in one click.
Formatting headlines and titles
Publications and style guides usually want title case for headings. Converting is faster and more consistent than capitalising by hand.
Preparing variable names for code
camelCase, snake_case and kebab-case are all standard naming conventions in programming, and converting between them is a routine task.
Cleaning up imported spreadsheet data
Names and addresses pasted from other systems often arrive in all caps. Title case makes a customer list presentable again.
Toning down text that reads as shouting
All-caps sentences read as shouting in email and chat. Converting to sentence case makes the same message land far better.
Who uses our free case converter?
Writers & editors
Fix headings and titles fast, or clean up text that arrived in all caps or all lowercase.
Developers
Convert labels and names between camelCase, snake_case and kebab-case without hand-editing each one.
Marketers
Apply consistent title casing to headlines, buttons and campaign names in seconds.
Why use the case converter?
Seven case styles
Covers everyday casing and developer naming conventions in a single tool.
One-click convert
No find-and-replace or retyping — pick a style and the result is ready to copy.
Free and private
No sign-up, and your text never leaves your browser.
Every case format explained
The same phrase — “hello world example” — shown in each format.
| Format | Example | Typically used for |
|---|---|---|
| UPPERCASE | HELLO WORLD EXAMPLE | Headings, acronyms, emphasis |
| lowercase | hello world example | Tags, casual styling, URLs |
| Title Case | Hello World Example | Article headlines, book and film titles |
| Sentence case | Hello world example | Body text and normal prose |
| camelCase | helloWorldExample | Variables in JavaScript, Java and similar |
| snake_case | hello_world_example | Python variables, database columns |
| kebab-case | hello-world-example | URLs, CSS classes, file names |
Tips for getting the best results
Title case doesn't capitalise everything
Most style guides leave short words such as “a”, “of”, “the” and “and” lowercase unless they start the title. Check the result rather than assuming.
Sentence case respects existing full stops
Converting a multi-sentence paragraph capitalises the first letter after each full stop, so you can paste whole paragraphs at once.
Proper nouns need a manual check
No automatic converter can know that “paris” is a city rather than a word, so scan the output for names, brands and places after converting.
Pick the right case for code
Match whatever your codebase already uses. Mixing camelCase and snake_case in one project causes avoidable confusion.
Frequently asked questions
What's the difference between Title Case and Sentence case?
Title Case capitalises the first letter of every major word (Great For Headings), while Sentence case only capitalises the first letter of each sentence (great for body text).
Does it support camelCase and snake_case?
Yes. Alongside standard cases it converts text to camelCase, snake_case and kebab-case, which is handy for code and file names.
Is it free?
Yes — it's free, needs no sign-up, and runs entirely in your browser.
What is title case?
Title case capitalises the first letter of the main words in a heading while leaving short connecting words such as “and”, “of” and “the” lowercase — the convention used for article headlines and book titles.
What's the difference between title case and sentence case?
Title case capitalises most words in the line. Sentence case capitalises only the first word and any proper nouns, exactly as you'd write a normal sentence.
Can I convert text to camelCase for coding?
Yes. camelCase, snake_case and kebab-case are all included, which covers the naming conventions used in most programming languages, databases and URLs.
Will converting change my punctuation?
No. Only letter casing changes — punctuation, numbers, line breaks and spacing are all left exactly as you pasted them.
Is there a limit on how much text I can convert?
There's no set limit. The conversion runs in your browser, so very long documents are handled as quickly as your device can process them.
