Featured
Products worth a closer look. See what each can do for you—and what becomes possible when they connect.
Read · explore · make it yours
Hopper Book Platform
Find something worth settling into. Open it in a reader that lets you choose the typography, atmosphere and rhythm of the page.
Know before you start
AI Capacity
See which supported AI accounts have room left, when their limits reset, and where your tokens went—all in one compact view.
Calculate · understand · practice
Calculator
Work through a financial calculation, graph an expression, or practice a familiar calculator model with guided key-by-key lessons.
A little recognition goes a long way
Brand Icon Lookup
Turn a domain into a compact website icon. Start with the bundled cache, discover more through the lookup service, and put the result to work in your app.
Build a model. Follow the numbers.
Workbook Studio
Start with a useful template, change the inputs and see the model respond. Inspect formulas and their dependencies beside the work itself.
Play · create · explore
Hopper Games Platform
Find a game, open it in the Arcade, then explore the tools for shaping experiences and studying how they play.
Useful alone. Better together.
Brand Icon Lookup finds the image. Mail puts it where recognition matters: beside the sender. See the difference, then try a website of your own.
See them work together ↗