Convert Case

Convert Case transforms your text between every common capitalization style and runs a few handy clean-ups — reverse, hyphenate, strip emoji or HTML, and find & replace. Everything happens live in your browser: paste your text, click an option, then copy or download the result. Your text is never uploaded.

Every case style, defined

• Sentence case: Capitalizes the first letter of every sentence and lowercases the rest — like normal prose. Example: “the quick brown fox. it runs.” becomes “The quick brown fox. It runs.”
• lower case: Makes every letter lowercase. Example: “Hello World” becomes “hello world”.
• UPPER CASE: Makes every letter uppercase. Example: “Hello World” becomes “HELLO WORLD”.
• Capitalized Case: Capitalizes the first letter of every word, including short words. Example: “the lord of the rings” becomes “The Lord Of The Rings”.
• Title Case: Capitalizes the main words but keeps short articles, conjunctions and prepositions lowercase (unless first or last), following editorial style. Example: “the lord of the rings” becomes “The Lord of the Rings”.
• aLtErNaTiNg cAsE: Alternates lowercase and uppercase for each character. Example: “hello” becomes “hElLo”.
• InVeRsE CaSe: Swaps the case of every letter — uppercase becomes lowercase and vice versa. Example: “Hello” becomes “hELLO”.

Text transforms

• Remove Extra Spaces: Collapses repeated spaces and tabs into single spaces and trims each line.
• Reverse: Reverses the order of all characters in the text.
• Hyphenate: Replaces spaces with hyphens (kebab-style), handy for URL slugs.
• Underscore: Replaces spaces with underscores (snake-style), handy for variable or file names.
• Remove Emoji: Strips emoji and pictographs, leaving the plain text.
• Remove HTML: Removes HTML tags so only the readable text remains.
• Find & Replace: Replaces every occurrence of one string with another. Tick “Match case” for an exact, case-sensitive replacement.