Product Hunt: Cotypist brings local AI autocomplete to every Mac app

Cotypist appeared in the Product Hunt top 10 on June 23, 2026, with a premise that distinguishes it from most AI writing tools: all processing happens on the user’s Mac, with no data sent to a remote server.

The tool predicts the user’s next words while they type in any Mac application—Mail, Slack, Notion, Obsidian, browsers—and shows the suggestion inline. Pressing Tab accepts the suggestion. Pressing the right arrow key accepts it word by word. Continuing to type dismisses it. The suggestion system adapts over time to individual writing patterns, and the product cites approximately 50% reduction in keystrokes for regular users.

The on-device approach has specific appeal for writers working with drafts they prefer to keep off cloud services, enterprise users operating under IT policies that restrict data transfer to third-party servers, and anyone who needs the tool to function without internet access. The positioning deliberately sidesteps the privacy tradeoffs common to AI writing assistants that process text remotely.

Additional features include real-time typo correction and emoji suggestions. The free tier allows 100 completed words daily; paid tiers offer unlimited completions with a 30-day Pro trial available on download.

Cotypist is not a draft generator or research assistant. It makes no claim to improve content quality—only the speed of getting words down. For writers who want AI assistance that stays in the background, works across their existing toolset, and does not require context-switching to a separate interface, that narrowness is the point.