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Knapsack automates your work—starting with email. Click right to send auto-drafted replies, left to archive or delete. All without storing your data on a new cloud.
Knapsack AI AssistantYour email on autopilot — with you at the wheel
Mark Heynenstarted a discussion
Hi, I'm Mark, and I think AI should be private 🎒
I’m Mark Heynen—co-founder of Knapsack, where we’re building private AI automations for professionals in finance, healthcare, and other high-trust industries. Here’s what we’ve learned: AI can be powerful—but for real work, it has to be private. That means: You control where your data lives It runs in your environment, not ours It’s grounded in your systems, files, and workflows—not the...
Mark Heynenleft a comment
I am a major data nerd, so love this.
Statistics for StravaSelf-hosted statistics generated using Strava data
Mark Heynenleft a comment
I am curious at what point websites will launch headless, with interfaces exclusively for AI agents. It is an interesting future to contemplate.
Salespeak - Website AI GraderTest your website’s AI compatibility today
Mark Heynenleft a comment
Hey Product Hunt! 👋 I’m Mark Heynen, co-founder of Knap. We’re thrilled to introduce Knapsack 🎒, your free personal AI assistant designed to streamline your email workflow. 🧠 ✉️ **What is Knapsack?** Knapsack is a desktop app for Windows and Mac that: • Figures out which emails from the last 48 hours require a response • Autodrafts email replies to those emails based on your writing style. •...
Knapsack AI AssistantYour email on autopilot — with you at the wheel
Mark Heynenleft a comment
Great space to launch in. I connected a few of my online services. Interesting to see how it compares to Rewind / Limitless and Dropbox Dash -- seems to have elements of both. I definitely see the need for having access to a critical mass of data to be able to provide useful insights. Best of luck!
Insights by AyraaA new dimension in enterprise search AI
Mark Heynenleft a comment
Easy to use, and solves a major pain point.
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