A place for every part of you.
Work, home, health, money, travel, a library of ideas and somewhere to explore. Familiar places make things easier to find.
Your computer has apps. Your life has context.
Stop switching.
Start living.
An email here. A note there. A conversation you can’t find.
Worldlet brings the pieces into one place — with a companion who helps you make sense of them.
01 / Applets
Small tools.
A world of possibilities.
Your familiar tools become little places in your world. Email, notes, coding, music — close at hand, without another tab to keep track of.
Open an Applet yourself, or ask Fox to take you there. Connected Applets give your companion something to work with, not just something to talk about.
Explore the Applets above
Familiar tools. A different way to be together.
02 / World
Change what you’re doing.
Keep the thread.
Move from an email to a video and back. Fox’s conversation follows the place you’re in, so returning to something feels like picking up where you left off.
One world. Room for your whole day.A space you want to be in.
A living sky. Music when you want it. A podcast that remembers where you stopped. Make room for focus — and a little wandering.
Where we’re going / Cross-Applet workflows
One intention. Many tools.
“Turn our meeting decisions into something we can ship.” This walkthrough example shows the direction: Fox carrying context across tools, with you in control.
- CalendarFind the decisions
- NotionShape the brief
- CodexBuild the change
- GitHubReview the work
“What was that page
I was looking at last week?”
Meet Fox. Your companion in this world.
03 / Companion
A little less explaining.
A lot more understanding.
One companion for the different parts of your day. Fox understands your current view, helps with connected sources, and can recall eligible pages you’ve visited in Worldlet.
Ask a question. Find a forgotten link. Draft a reply. Tell Fox how you like to be spoken to. The more context you choose to share, the more useful the conversation becomes.
Meet Fox on your Mac04 / Attention Center
Your attention is precious.
Let’s keep it that way.
An inbox asks you to look at everything. The Attention Center is designed to help you notice what matters: what’s coming up, what you can act on, and what’s simply good to know.
It brings related context together, so a useful next step can be easier to see.
Illustrated example from the walkthrough. Booking and invitations shown there are demonstrations.
Coming UpDo SomethingGood to Know
Play tennis with Sam.
A friend is back in town. A sunny Saturday. Your plan to stay active. Together, they suggest something better than another notification.
Sam’s emailSunny SaturdayStay active
One thoughtful next step.
Less to sort through. More to look forward to.
Our direction
A world of your own.
In every sense.
AI will change. Your tools will change.
Your world should still belong to you.
Your context stays yours.
Your world data and saved history live locally on your Mac. You choose the sources to connect. Cloud AI and external services still process the information their features need.
Open possibilities.
Our vision for Applets: an open standard, described by applet.json. Discover, create and share them like websites, without a central store. Keep the useful ones. Let the rest go.
An interface you can inhabit.
We call it World UI: a more natural way to live and work with AI. We’re building toward deeper customization, more environments and a companion relationship that outlasts any one model.
Worldlet is in active development. Open Applet discovery, on-demand Applet creation and expanded world customization are product directions.
Make yourself at home
Your next chapter
has a whole world in it.
Bring your tools. Bring your ideas. Meet your companion.
Download Worldlet for MacFor Apple Silicon · macOS 26 or later
Before you step inside.
What is Worldlet?
Worldlet is a local-first personal AI world for Mac. Your apps and information live in a spatial world, with Fox as your companion for questions, navigation and supported tasks.
Is this the full app?
The world at the top of this page is an interactive preview with fictional content. Explore its places and Applet introductions without connecting an account. Your persistent world, conversations and connected sources live in the Mac app.
What do I need to run it?
An Apple Silicon Mac running macOS 26 or later. Install Worldlet, set up a supported AI model, and connect the sources you want to use. External providers may require their own accounts or paid plans.
Do all Applets work the same way?
No. Some read connected sources or local data; others open a service’s website. Available actions depend on the Applet and your permissions. The open Applet standard and on-demand creation shown in our vision are still in development.
Does everything work offline?
Your world data is stored on your Mac. Cloud AI and connected services need an internet connection and may receive context required by the features you use. Local-first does not mean every request is processed on your device.