A local-first canvas for your AI co‑work.

Jamb is a floating canvas that lives on your Mac, holds the things you and your AI build together, and stays out of your way until you need it.

Coming soon for macOS

Always at hand

A floating panel appears when you need it and disappears when you don't. A global hotkey keeps the flow unbroken.

Everything belongs

Markdown, code, images, video, PDFs, and sandboxed interactive web artifacts — one surface for everything you keep close at hand.

Works with your AI

A bundled Agent Skill teaches your AI how to build sheets well. An MCP server lets it read, create, and edit them live. Whichever AI you use.

Yours alone

Local-first by design. No account, no cloud, no subscription. Your sheets are files on your Mac that you own.

AI integration — on your terms, in your Settings.

Flip the MCP server on when you want a live link. Export the bundled skill into whatever AI you use.

Jamb settings card showing the MCP Server toggle
Jamb settings card showing the Agent Skill export button