Download & Install

Everything you need to get Brilliant running on macOS or Windows. Grab the installer, run it, and sign in. You'll be on the canvas in a couple of minutes, and a short guided tour runs the first time to show you around.

1. Get the app

Click . It grabs the macOS installer (the .dmg). Windows is in early beta; pick it from the platform chooser to grab the .exe setup instead.

2. Install it

macOS

Open the .dmg and drag Brilliant into the Applications folder.

The Brilliant .dmg installer window with an arrow pointing to the Applications folder

macOS will confirm once. Click Open and you're in.

macOS Gatekeeper dialog asking to confirm opening Brilliant

Windows

Run the downloaded Brilliant-…-Setup.exe. It installs just for you (no admin prompt) and launches when it finishes.

SmartScreen: if Windows shows a "Windows protected your PC" notice, click More info → Run anyway. Brilliant keeps itself up to date from inside the app, so you only do this once.

The first time you open Brilliant, it asks you to sign in. There are no passwords: enter your email and Brilliant sends you a 6-digit code, or continue with Google. The same account signs you in on the desktop app and on brilliant.design.

4. Take the tour

Once you're signed in you land on the canvas, with the AI chat open. A short guided tour runs on this first launch and spotlights the parts of the editor you'll reach for first: watching an agent design, jumping to any element, and running chats side by side. It plays once and steps you through each part in turn.

Brilliant on first launch, with the AI chat open and the guided tour running

Tip: Press ⌘⌃A (on Windows, Alt+A) to fit the whole canvas in view whenever you want to get your bearings.