Case Converter

Drop your text into the input area and click the lowercase button. Every capital letter drops to its small form instantly. So "HELLO WORLD" becomes "hello world". Works on a single word or a full document. The tool handles mixed-case input too — pasting "HeLLo WoRLD" still gives you "hello world" cleanly. Once converted, hit Copy and you've got the cleaned-up version on your clipboard, ready to paste into your email, code editor, or document.

Sentence case capitalises only the first letter of each sentence — "this is my heading." Title case capitalises the start of every major word — "This Is My Heading." Use sentence case for body paragraphs and dialogue. Use title case for headings, book titles, blog post titles, and YouTube videos. Paste your text, hit the Title Case button, and the tool handles the capitalisation rules automatically. Small words like "of", "and", "the" usually stay lowercase unless they begin the title.

camelCase joins words together with no spaces, lowercasing the first word and capitalising every word after that. So "user profile name" becomes "userProfileName". It's the standard naming convention for JavaScript variables, JSON keys, and method names in many programming languages. Paste your phrase, click camelCase, and copy the result straight into your code. If you want PascalCase instead — "UserProfileName" with a capital first letter — that's a separate option in the same converter.

Don't retype anything. Paste the original text into the converter, hit Uppercase, and the entire block flips to capitals at once. So "this needs shouting" becomes "THIS NEEDS SHOUTING" in one click. Saves a lot of time when you've got a long paragraph or a list of headings to convert. The lowercase letters get capitalised, while existing capitals stay capitals, and numbers and punctuation stay as they are. Faster than holding the shift key.

snake_case uses underscores between words, like "user_profile_name". camelCase removes those underscores and capitalises the start of every word except the first, giving you "userProfileName". Paste your snake_case input, pick the camelCase option, and the tool drops the underscores and adjusts the capitalisation in one go. Handy when you're moving variable names between Python and JavaScript codebases or cleaning up database column names for an API response. Works the other way too.

That's title case. Paste your text, click the Title Case button, and every word gets its first letter capitalised — "the great gatsby" becomes "The Great Gatsby". Useful for headings, names, book titles, and labels. Some title-case styles keep small words like "of", "the", "in", "and" lowercase unless they start the title. The tool follows that common convention so your output looks like a proper headline rather than "The Great The Gatsby Of Fitzgerald".

Paste your lowercase text and click Uppercase. Done. "we are open today" becomes "WE ARE OPEN TODAY". The tool processes the whole block at once, no matter how long. Numbers and punctuation aren't affected since they don't have a case. After conversion, copy the output to use it in headings, banners, code constants, or anywhere caps lock is needed. Quicker than holding shift and retyping the entire line, especially when working with hundreds of words.