Port42 – AI companions that build and act on your Mac (v0.5.0)
Port42 is a native Mac app built by the collaboration it enables. One human and many AI companions, thinking together, shipped 40+ releases in 9 days. Companions live alongside you in conversations. They don't just respond. They build interactive surfaces and act on your system through a single API. Ports are how companions interact with your machine. One API, two surfaces: The visual surface renders live HTML/CSS/JS apps that companions create mid-conversation. They render inline, pop out into floating windows, dock, resize, persist across sessions. A companion can build you a…
Port42 – AI companions that build and act on your Mac (v0.5.0) launched on March 16, 2026 with 5 votes, #1,928 of 23,380 launches that month and more than 75% of that year's launches.
What it does
A native Mac app where humans and AI build together on shared live surfaces, not just chat. Bring any model, on your machine. Open source.
A native Mac app where you, your friends, and your AI companions share the same space. Talk, build, and watch ideas take shape together. macOS 15+ · Apple Silicon · signed DMG. Bring your own AI (Claude, Gemini, OpenAI-compatible, LangChain, or OpenClaw). This one is a synth. You and your companions play it together. Direct a companion to build the surface your task needs, a dashboard, a review room, a data explorer, a music room. It appears live in the space you share, for you and everyone in it. Atelier, three companions drawing a symbol together in real time. Two companions, Maker and Critic, coordinating to build a pricing tool. Two companions, splitting the work to build…from port42.ai
In the maker’s words, at launch
Port42 is a native Mac app built by the collaboration it enables. One human and many AI companions, thinking together, shipped 40+ releases in 9 days. Companions live alongside you in conversations. They don't just respond. They build interactive surfaces and act on your system through a single API. Ports are how…
Does a similar job
all alternatives →
AI companions stack – create and host your own AI companions2023 · github.com · ▲112AI companions with memory: a lightweight stack to create and host your own AI companions - a16z-infra/companion-app
More ai this month
the category →
Paintings by AI models: programs run through a simulation of oil paint.
AI · 22d ago · stillwet.art
FastRouter.ai▲364Route requests to the right LLM for cost, latency & quality
AI · 23d ago · fastrouter.ai
Source: Show HN post ↗ · launch text quoted in part
Launched alongside, March 2026
the whole month →
Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com
Littlebird▲709Littlebird remembers everything across your meetings, messages, docs, and apps, then takes action so you can recall any detail and never lose context.
AI · Mar 2026 · littlebird.ai
