Fix Any Case Mistake in One Paste
Caps lock left on halfway through an email, a headline that needs Title Case for a CMS, a config value that has to be lower case with no exceptions — this tool handles all of it without you retyping a single word. Paste your text on the left, pick a case from the tabs below, and the converted version appears on the right, ready to copy.
Everything runs in your browser. Your text is never uploaded anywhere, which matters if you're pasting in something you'd rather not send to a server — a draft email, an unpublished headline, client copy under NDA.
The 7 case styles, explained
- Sentence case — a capital letter to start each sentence, proper nouns capitalized, everything else lowercase. For a single-purpose version, see the Sentence Case Converter.
- lower case — strips every letter down to lowercase, useful for slugs, usernames, and file names.
- UPPER CASE — capitalizes every letter, for headers, acronyms, or emphasis.
- Capitalized Case — capitalizes The First Letter Of Every Word.
- aLtErNaTiNg cAsE — swaps between lowercase and uppercase letter by letter.
- Title Case — capitalizes major words while keeping short connector words like "a," "the," and "of" lowercase. For a single-purpose version, see the Title Case Converter.
- InVeRsE CaSe — flips the case of every letter you typed, uppercase becomes lowercase and back.
What does "Auto-correct proper nouns and abbreviations" do?
Case conversion is blunt by default — switching to lower case would turn "iPhone" into "iphone" and "NASA" into "nasa." With this setting on, the converter recognizes common proper nouns and abbreviations and keeps their casing intact. If you work with terms it doesn't already know — a company name, a product, an acronym specific to your field — add them to the custom terms box in Settings, one per line, and the converter will preserve them from then on.
Why does capitalization matter?
Inconsistent casing is one of the fastest ways writing reads as sloppy — a headline in the wrong case, a heading that doesn't match the rest of the page, a variable name that breaks a style guide. It's a small detail, but it's one readers and reviewers notice immediately, even if they can't say exactly what looked off.
Cleanup & formatting tools
- Whitespace Remover — strip every space, tab, and line break out of your text, collapsing it into one unbroken run.
- Remove Line Breaks — join broken-up lines back into one block, or split them with a separator of your choice.
- Remove Text Formatting — strip styles, HTML, emojis, and extra spaces from text copied out of Word, Google Docs, or a web page.
- Remove Underscores — replace every underscore with a space, handy for cleaning up file names and variable names.
- Em Dash Remover — strip out em dashes and other telltale AI-writing artifacts, with control over what replaces them.
- Character Remover — tell it which letters, digits, or symbols to strip out, and watch the cleaned text update as you type.
- Duplicate Line Remover — keep only the unique lines from a list, first occurrence wins.
- Plain Text Converter — strip fonts, colors, and hidden formatting from pasted content while keeping lists and indentation intact.
Generators & translators
- Lorem Ipsum Generator — placeholder paragraphs, sentences, or words for mockups and layouts, ready to copy or download.
- Repeat Text Generator — repeat a word or phrase a set number of times, with your choice of separator.
- Reverse Text Generator — flip your text backwards, character by character.
- Invisible Text Generator — generate real Unicode characters that look blank, for places a plain space gets rejected.
- NATO Phonetic Alphabet Translator — spell text out with Alpha, Bravo, Charlie, and the rest, useful for reading passwords aloud unambiguously.
- Phonetic Spelling Generator — a plain-letter, sound-it-out respelling of any English text, no dictionary symbols required.
- Pig Latin Translator — translate text into Pig Latin and back again.
- Wingdings Translator & Converter — render text as Wingdings, Wingdings 2, Wingdings 3, or Webdings symbols, or decode them back.
- Number to Words Converter — spell numbers out in full, with international or Indian numbering and check-amount formatting.
- Roman Numeral Date Converter — convert any date to Roman numerals, or decode Roman numerals back into a date.
- APA Citation Generator — turn a source's details into a properly formatted APA 7th edition reference.
Analysis & organization tools
- Online Sentence Counter — fast, accurate sentence, word, and character counts for anything from a paragraph to a full manuscript.
- Word Frequency Counter — see every unique word in your text ranked by how often it appears.
- Duplicate Word Finder — find the words you keep reaching for without noticing.
- Sort Words Alphabetically — put a list of words or lines into A–Z order.
- Find and Replace Text — swap every instance of a word or phrase across your document at once, with matches highlighted as you type.
- Word Cloud Generator — turn your text into a visual cloud where the words you use most are drawn largest.
Last reviewed: August 2026