Free Case Converter
Change text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, kebab-case and more. See your text in every case at once, then copy or download the one you want. It all runs in your browser.
Enter some text to see every case
Convert in four steps.
No sign-up, no page reload and no upload. Paste your text, pick a case, and grab the result.
Paste your text
Type or paste anything into the box, from a single word to a whole document. Multiple lines are kept as they are.
Pick a case
Choose from UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and more. The text changes on the spot.
See every case at once
The panel below shows your text in all twelve cases together, so you can compare them and grab exactly the one you want.
Copy or download
Copy the result in a tap, or download it as a plain text file. Nothing is uploaded, so it all stays on your device.
Twelve cases, one paste.
Everyday cases for writing and headings, and programmer cases for code and the web. Here is the shape of each one.
UPPERCASE
THE QUICK BROWN FOX
Every letter capital. Good for headings, acronyms and shouting a label, though a long run of it is harder to read.
lowercase
the quick brown fox
Every letter small. Handy for tidying text that was typed in caps, and for tags, slugs and handles.
Title Case
The Quick Brown Fox
The first letter of each word capitalised. The usual choice for headlines, titles and names.
Sentence case
The quick brown fox
The first letter of each sentence capitalised, the rest left as normal text. The way ordinary writing reads.
camelCase
theQuickBrownFox
First word small, each word after it capitalised, no spaces. Common for variables and functions in code.
PascalCase
TheQuickBrownFox
Every word capitalised and joined with no spaces. Used for class and type names in many languages.
snake_case
the_quick_brown_fox
Words in lower case joined by underscores. A favourite for database columns, file names and Python code.
kebab-case
the-quick-brown-fox
Words in lower case joined by hyphens. The standard for URLs, CSS classes and web page slugs.
CONSTANT_CASE
THE_QUICK_BROWN_FOX
Words in capitals joined by underscores. The convention for constants and environment variables.
dot.case
the.quick.brown.fox
Words in lower case joined by dots. Turns up in config keys, namespaces and some file names.
aLtErNaTiNg case
tHe QuIcK bRoWn FoX
Case flips on every letter. A playful, mocking style people use in chats and captions.
Inverse case
THE QUICK BROWN FOX to tHE qUICK...
Swaps the case of every letter, so capitals become small and small become capital. A quick way to flip text typed with caps lock on.
From messy text to clean data, sorted.
Fix text typed in caps
Someone sent a paragraph in all capitals. Drop it in, switch to Sentence case, and it reads like normal writing again.
Format code identifiers
Turn a label or a column name into camelCase, snake_case or PascalCase to match the style your codebase already uses.
Build clean URL slugs
Convert a page title to kebab-case to get a tidy, lower case slug with hyphens, ready to drop into a link.
Tidy headlines and titles
Apply Title Case to a heading so every word starts with a capital, without going through and shifting each letter by hand.
Name environment variables
Turn a setting name into CONSTANT_CASE so it lines up with the other keys in your config or your .env file.
Normalise messy data
Paste a column of names or tags and bring them all to one consistent case before you import or compare them.
Data that stays consistent?
Fixing the case of one block of text is easy. Keeping names, codes and records tidy and consistent as they flow through a whole system, so nothing is duplicated or mismatched, is a different job. That is the kind of software we build at Techliphant, shaped around how your product actually works.
Common questions.
It is a free online tool that changes the letter case of text. Paste in a word, a sentence or a whole document, pick a case such as UPPERCASE, Title Case, camelCase or snake_case, and the text is rewritten in that style. You then copy or download the result.
Twelve in all: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, aLtErNaTiNg case and Inverse case. The panel shows your text in every one of them at once, so you can pick the exact style you need.
Paste the uppercase text into the box and press the lowercase button. Every letter is brought down to small letters straight away. If you want it to read like normal writing instead, use Sentence case, which lowercases everything and then capitalises the start of each sentence.
Title Case capitalises the first letter of every word, the way a headline or a book title looks. Sentence case capitalises only the first letter of each sentence and leaves the rest in normal text, the way an ordinary paragraph reads.
They are naming styles used in code and on the web. camelCase and PascalCase join words with no spaces and are common for variables, functions and class names. snake_case joins lower case words with underscores, often for database columns and file names. kebab-case joins them with hyphens and is the usual choice for URLs and CSS classes.
Yes. Every case works line by line, so your paragraphs and line breaks stay where they are. The programmer cases join the words within each line, which is what you want for an identifier, while the everyday cases keep the text laid out as you pasted it.
There is no fixed limit set by the tool. Because everything runs in your browser, the real limit is your device memory, so a very large document on an older phone may be slow. For normal text, from a line to many pages, it is instant.
No. The conversion happens entirely in your browser, on your own device, in JavaScript. Nothing you type is uploaded or stored anywhere, which makes it safe for private notes, drafts and confidential text.
Yes. It runs in any modern browser on a phone, tablet or computer, with nothing to install. Once the page has loaded it keeps working even without a connection, because there is no server call.
Yes, it is completely free with no sign-up, no account and no watermark. Use it for personal or commercial work as much as you like.
Private by design: this converter runs entirely in your browser. Every conversion happens on your own device in JavaScript, so nothing you type is uploaded to a server or stored anywhere. That makes it safe for private notes, drafts and confidential text, and it keeps working even if your connection drops.
Ready when you are
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