Fixkey

Fixkey is a native macOS app that brings AI writing help into any application on your Mac. Instead of copying text into a chatbot and pasting it back, you type or speak where you already are, in email, chat, a document or a browser field, and use Fixkey to clean up, rewrite or translate the text in place.

Main features

The app combines two input styles. The first is rewriting: select text and, with one action, Fixkey fixes grammar and spelling or rewrites it to sound clearer or more polished. This is useful for people writing in a second language who want a message to read naturally. The second is voice. Fixkey includes speech-to-text that works in every app, and the company says it supports more than 180 languages. You can speak a rough thought and have it formatted into a usable message rather than a raw transcript.

Translation is built in, so a reply can be written in one language and sent in another. Custom prompts let you define your own transformations, such as a specific tone for customer emails or a format for status updates, so the tool matches how you write rather than imposing one style. A personal dictionary helps it keep names and specialist terms spelled the way you want.

Pricing

There is a free download to try the app. Fixkey Pro unlocks unlimited AI rewrites, unlimited speech-to-text, custom prompts and dictionary words. Prices and plan details are on the pricing page and may change, so check there before you buy.

Who it is for

Fixkey suits Mac users who write a lot of short and medium-length text through the day: founders, support staff, freelancers and non-native English speakers. It has been featured on Product Hunt and Show HN and covered by several Mac-focused publications, and the company says more than 20,000 people used it last year.

Things to consider

It is Mac-only, so teams on Windows or Linux will need something else. Because the app works across every application, it needs accessibility and microphone permissions, and selected text is sent for AI processing. Review the privacy policy if you handle confidential material. As with any rewriting tool, read the output before sending, especially for translations, where small changes in meaning can matter. For people who already live in macOS and want a lighter alternative to switching windows, though, a system-wide assistant like this can save a lot of small interruptions over a working day.