Juggler Juggler
Juggler is a visual workbench for AI coding agents built by Julian Storer, the developer behind JUCE, Tracktion and Cmajor. Conversations are persistent, branchable document trees navigated with Miller columns, where every tool call and recorded LLM transaction can be inspected and context can be edited, folded or moved between threads. A Go server runs where the code lives, and the native desktop app, a browser tab or a phone can attach to the same live session.
Juggler shipped v0.7.0 and v0.7.1 in late September 2026 after launching on Hacker News as a Show HN; the public repository had roughly 600 GitHub stars at review time.
As of
- Branchable session trees with nested sub-threads for tangents and delegated work
- Inspection of tool calls and raw LLM transactions, including prompts, tokens and cache use
- Editable context: fold, move or copy items between branches with undo
- Headless server with multiple live clients (desktop app, browser, phone)
- Vendor-neutral BYOK providers: Claude Code, OpenAI Codex, GitHub Copilot, Gemini, Ollama and more
- JavaScript plugin API for context items, loop strategies, slash commands and UIs
Developers who want a GUI coding agent with visible, editable context and inspectable model calls, including those running agents on remote dev boxes.
Developers who prefer a terminal-only agent workflow or want a hosted service with bundled model access.
Juggler is free and open source: the main application is AGPL-3.0 and the extension SDK and bundled extensions are Apache-2.0. It requires no Juggler account and resells no tokens; model usage is billed by whichever provider or existing subscription you connect.
A thoughtfully designed, vendor-neutral GUI workbench for coding agents whose branching sessions and full transaction inspection stand out from chat-transcript interfaces. It is an early 0.x project from a single primary maintainer.
Is Juggler free?
Yes - Juggler is Open Source. Juggler is free and open source: the main application is AGPL-3.0 and the extension SDK and bundled extensions are Apache-2.0. It requires no Juggler account and resells no tokens; model usage is billed by whichever provider or existing subscription you connect.
Is Juggler open source?
Yes - Juggler is open source. Juggler is free and open source: the main application is AGPL-3.0 and the extension SDK and bundled extensions are Apache-2.0. It requires no Juggler account and resells no tokens; model usage is billed by whichever provider or existing subscription you connect.
Who is Juggler best for?
Developers who want a GUI coding agent with visible, editable context and inspectable model calls, including those running agents on remote dev boxes.
Who is Juggler not ideal for?
Developers who prefer a terminal-only agent workflow or want a hosted service with bundled model access.
What are the best Juggler alternatives?
The closest Juggler alternatives on ai.dosa.dev are Cursor, Devin, Trae - all listed under AI-Native IDEs & Editors.
Who makes Juggler?
Juggler is developed by Julian Storer. It is listed in the AI-Native IDEs & Editors category on ai.dosa.dev.
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