Goldfish

Goldfish is a desktop application that runs on your Mac (and Windows) and acts as a personal AI memory. It watches over your shoulder — in a good way — learning your writing patterns, your tone, and the context of your work. Then, with a single click (or pressing the Option key), it can draft a reply to any message you receive, whether it's an email, a Slack message, or a comment. The goal is to save you the mental effort of switching contexts and crafting each response from scratch.

How does it work? Goldfish lives quietly in the background, observing your activity to build a model of your communication style. When you need to respond to a message, you hit a hotkey, and Goldfish generates a reply that sounds like you — using your typical phrasing, level of formality, and relevant context from your recent work. It works anywhere you type, across apps. The app is free during its alpha phase, and the developers have already tracked over 34,000 'Option clicks' from early users. It's available for both macOS and Windows.

Who should use Goldfish? Anyone who spends a lot of time responding to messages — knowledge workers, customer support reps, salespeople, or just someone with a busy inbox. It helps you maintain a consistent, personal voice without the tedium of typing everything manually. While it's still early, the promise is clear: one click, your voice, full context.