Discover Fixkey, an AI writing assistant for macOS that improves any sentence with a single shortcut across apps like Gmail, Slack, and Notion.

Fixkey is an AI writing assistant for macOS, positioned as an alternative to Grammarly for heavy users. It lets you select a sentence and improve it instantly with a single shortcut, working across everyday apps like Apple Notes, Gmail, Slack, and Notion. Its AI models respond in under 200 milliseconds, making corrections fast enough to use mid-thought. Fixkey is designed to improve both writing quality and speed on your Mac, streamlining writing and brainstorming so you can generate ideas without worrying about mistakes.
Fixkey was created by Moritz Wallawitsch, the person behind RemNote. It is a lightweight app built specifically for macOS and supports over 200 languages through its use of Large Language Models (LLMs).
Fixkey is aimed at power users who write heavily on macOS, including angel investors, venture capitalists, and designers.
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