AI Proofreading on Mac — Your Final Review Before Hitting Send

You have finished writing an important email. You read it once, maybe twice. It looks fine. You hit send — and thirty seconds later you spot it: "you're" instead of "your," a missing word in the second sentence, and "quartre" instead of "quarter." Three different types of errors, and you missed all of them because you were checking for one thing at a time.

This is why AI proofreading matters. Proofreading is not spell-checking. It is not grammar-checking. It is the final, comprehensive review that catches everything at once — spelling mistakes, grammatical errors, punctuation problems, and inconsistencies — in a single pass. It is the last line of defense before your words reach someone else.

Why AI Proofreading Is Different from Spell Check or Grammar Check

A spelling checker finds misspelled words. A grammar checker finds structural errors like wrong verb tenses. Both are useful, but both are narrow. They each look for one category of mistake and ignore the rest.

Proofreading is holistic. A proofreader reads the entire text as a reader would and catches every type of error simultaneously:

• Spelling: "infrom" → "inform," "availble" → "available"
• Grammar: "you're interest" → "your interest" (wrong word form)
• Punctuation: missing commas, incorrect semicolons, inconsistent periods
• Consistency: switching between date formats, inconsistent capitalization

Is AI any good at proofreading? Yes — and in some ways better than humans. AI does not get tired after paragraph three. It does not skip over the same error your eyes have glazed past four times. It processes every word with the same attention, whether it is the first sentence or the last. For the mechanical aspects of proofreading — catching typos, wrong homophones, missing punctuation — AI is remarkably reliable.

See AI Proofreading in Action

Here is a short business email with multiple error types. No single-purpose checker would catch them all:

Before

Thank you for you're interest in our product. We would like to infrom you that the new version will be availble by the end of the quartre.

Select the text, press ⇧⌘F, and WunderType returns:

After

Thank you for your interest in our product. We would like to inform you that the new version will be available by the end of the quarter.

Four corrections in two sentences: a homophone error ("you're" → "your"), two misspellings ("infrom," "availble"), and a garbled word ("quartre" → "quarter"). A spelling checker might catch two of these. A grammar checker might catch one. The AI proofreader catches all four in a single pass — exactly what a human proofreader would do, but instantly.

Set Up an AI Proofreader in 30 Seconds

WunderType is a macOS menu bar app that lets you create Custom Prompts — AI-powered text actions triggered by keyboard shortcuts. To build your own AI proofreader:

1. Click the WunderType icon in your menu bar and open Custom Prompts
2. Create a new prompt named "AI Proofreader" with this instruction: Proofread this text thoroughly. Fix all spelling errors, grammatical mistakes, punctuation issues, and inconsistencies. Preserve the original meaning, tone, and style. This is a final review — the text should be ready to send after your corrections.
3. Assign ⇧⌘F as your shortcut — now it works in any app on your Mac

That is it. You now have a comprehensive AI proofreading tool that runs everywhere macOS does.

The Final Check, Not the First One

You might already use a grammar checker or a spelling tool. That is fine — keep using them. Proofreading is not a replacement for those earlier steps. It is the final pass you run after you think your text is ready. The one that catches the errors your other tools missed, the typo you introduced while editing, the punctuation you broke when you restructured a sentence.

Think of it this way: spell check and grammar check are like individual inspections on an assembly line. Proofreading is the quality control check at the end — one person looking at the finished product as a whole, catching anything that slipped through.

Works Across Every Mac App

Browser-based AI proofreading tools only work inside your browser. WunderType works at the system level — Mail, Slack, Pages, Notes, TextEdit, Google Docs in Safari, and any other app where you type. One shortcut covers your entire Mac.

WunderType also supports local AI models through Ollama, so your text never has to leave your machine. For sensitive documents — legal text, medical records, confidential emails — that matters.

Download WunderType from the Mac App Store and give every piece of text you write the final review it deserves.