Juggler

Juggler is a visual workbench for AI coding agents built by Julian Storer, creator of JUCE and Tracktion. It runs as a native Go server with a type-checked JavaScript interface, enabling developers to see and control their coding agent locally or remotely. The interface uses Finder-style Miller columns to navigate large sessions, with tool calls, context, and model transactions fully inspectable.

Conversations are stored as Yjs CRDT trees that support branching into nested sub-threads, editing, and undo/redo. The platform is vendor-neutral, working with Claude, OpenAI, GitHub Copilot, Gemini, Ollama and other providers. It's open source, free, requires no account, and proxies no traffic—prompts and keys go directly from your machine to your chosen provider. Multiple clients can connect to a live session simultaneously.