A few weeks ago, AI-first grammar tool called Fixkey was released. It is a native macOS app designed to enhance your typing with AI-driven grammar correction. Simply type in your text, select the prompt to apply (e.g., make bullet points), and receive the AI-modified text.
With just one shortcut, Fixkey can correct the grammar of the current line or paragraph. It is designed specifically for macOS, and it supports multiple languages using LLMs.

All you need to do in order to use it is trigger ⌥ + S to select the current line and replace it grammatically correct one
Or you can select text (1) and trigger ⌥ + J to show popup fixer (2) to update text with a custom prompt!
Here is how the result will look like for current line fix shortcut ⌥ + S
| Before : ehy, Jakcosn, i hoep yu cna reply tonas this email n esnt you a fewweks ago
| After : Hey, Jackson, I hope you can reply to this email I sent you a few weeks ago.
In the coming months, advanced translation with unique functionality will be released.
For now, you can translate any text to English using predefined prompts.
| Any language (e.g. Spanish): Así que hoy hice un progreso en la tarea de Jeremies.
| Fixkey : So today I made progress on Jeremie’s assignment.
The fixkey feature works vice versa: you can type in any language and receive the corrected version in the original language of the text.
Another interesting example we liked is bullet points! So we put a text above into fixkey and here is the output:
- Fixkey is a native macOS app designed for AI-driven grammar correction
- It supports multiple languages using LLMs
- Trigger ⌥ + S to select the current line and replace it with a grammatically correct one
- Trigger ⌥ + J to show the popup fixer
- The advanced translation functionality will be available in the coming months
- Currently, it can translate any text to English using predefined prompts
That’s useful, isn’t it?
Imagine reading an article or making notes, then simply select the text, trigger the shortcut, and receive a summarized, compressed version.
Based on user reviews on Reddit, people love that the app runs in the background and doesn’t use any of your battery. Developers worked hard to seamlessly integrate it into the system and make fixkey unnoticeable until you need it!
Developers made sure it uses 0% CPU while running and 5% when activated!
A big part of the audience consists of business people, sales professionals, and managers. Therefore, we attempted to integrate Fixkey into the context of LinkedIn. We composed a message that does not align with the style of professional communication.
| original: bro, i don’t like it, stop dm’eme please, we will talk frieday
| fixkey : I do not appreciate it. Kindly refrain from direct messaging me. We will communicate on Friday.
We tried simple prompt for this: make more professional and official
This is much better than the original message, but it’s still not quite there. We will try to improve the prompt…
Developers are planning to add a custom prompt to the interface based on rumors!
You get Fixkey with 15 free fixes every month, and you don’t even have to register to start using it.
With promo code ILOUNGE, you get 30% off on PRO plan.
You can try it here: https://fixkey.ai