OpenPencil is an open source recreation of Figma (MIT-licensed) designed to handle Figma files natively and allow MCP access to them.
Page Agent is a new open source project from Alibaba that lets you put an agent with access to your webapp into the browser. There’s an optional extension to give it full browser access.
Rive appears to be like a modern-day Flash. It lets you create animations and interactions which you can deploy to pretty much any medium.
Ki editor is a modal editor (like vi) with modes intended to make structural editing to code easier. In other words, it understands the syntax of the code and makes selections/edits that make sense for it.
A VS Code plugin for Ki editor also exists to bring many of the features to Ki to a more full-featured editor.