Open Claude UI

Open Claude UI is an open-source UI component library and motion engine that replicates the Claude desktop client design system.

Open Claude UI is an open-source UI component library and motion engine built by reverse-engineering modern desktop AI clients using the REA framework. It offers 30 independent React modules, custom physics springs, system-level typography fallbacks, and a Web Audio synthesis engine. The project targets developers seeking production-grade design systems with precise interaction physics, token metrics, and visual styling. It distinguishes itself through rigorous AST parsing, static analysis, and zero-black-box dependencies. Supported resources include React components, design tokens, and a complete technical manual.

Open Claude UI at a glance

Best for: Software engineer, Designer
Runs on: Web, macOS, self-hosted, open source
Pricing: Free
Released: October 2026
Category: AI coding tool
Website: github.com/caho1/open-claude-ui

Key features

30 production-grade independent code modules
System-level font fallback stack and audio synthesis
Offline Storybook preview for component animations
Complete reverse engineering technical manual
Physics spring parameter tuning and motion engine
Multi-agent collaboration topology and Cowork space

Use it for

Building AI chat interfaces with exact Claude design tokens
Studying reverse-engineered desktop application architecture
Implementing custom motion physics and spring animations
Prototyping chat bubbles and command input terminals

Companions

Tools that articles about Open Claude UI recommend using with it, each with its job.

Claude — Built to work with Claude.
Context7 — Up-to-date API documentation for coding questions.
Composio — Equips AI agents with tools, managed user auth, and sandboxes across 1,500+ apps
Make — Runs and manages Make scenarios from a conversation.
Canva — Templates for almost any design, plus AI editing in one tool
Figma — Brings design files and components into the chat.

Alternatives to Open Claude UI

opcode — Turns terminal Claude Code workflows into an intuitive visual interface.
Interface Design — Stops Claude from forgetting design choices between conversations.
Claude Code Workflows — Provides pre-built, automated workflows for Claude Code development processes.
LLM Desktop Electron — Run Claude Code and Claude Desktop on OpenAI or local models without Anthropic keys.
claude-mem — It shares persistent, searchable agent memory across sessions and devices.
Oh My ClaudeCode — Orchestrates parallel Claude, Gemini, and Codex CLI workers.
Claude Code — Terminal-first agent that handles multi-hour refactors and migrations
Claude Dashboards & Motion — Connects directly to data platforms and builds editable code-based animations.
Libraries.dev — Prompt-based UI libraries that coding agents can install and configure directly
Baoyu Design — Runs locally in your editor without a website subscription or upload step.
Build with Claude — Search over 28,500 plugins, 6,900 skills, and 6,600 MCP servers.
ClaudeAnimationBase — Provides assets, rules and a guide to generate character animations with AI.

All Open Claude UI alternatives