Top UI GitHub Repositories & Tools (2026)

A cross-platform desktop All-in-One assistant for Claude Code, Codex, OpenCode, OpenClaw, Grok Build & Hermes Agent. Only official website: ccswitch.io

A free, open-source Windows desktop organizer with native-feeling WinUI 3 widgets.

A terminal window manager that knows what your agents are doing. Tiling panes, workspaces, sessions that survive restarts, and one Inbox for every coding agent.

An AI skill that provides design intelligence for building professional UI/UX across multiple platforms.

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

the runtime your coding agents live on

The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. The fastest local inference engine in the world.

 This project is dedicated to collecting high-quality macOS software and organizing them systematically by different categories for easy search and use.

Free and open-source macOS menu bar toolkit.

🌸 The Cutest Music Player With Support Local File and Youtube Music for Android!

Free, open source video downloader for Windows, macOS and Linux that AI agents can drive. Downloads from YouTube, Instagram, TikTok, X, Reddit, torrents and the sites yt-dlp supports. Its MCP server lets Claude Code, Cursor and Codex queue downloads, and it runs Claude Code, Codex, Gemini CLI and Ollama as agents.

Composable, accessible components with thoughtful defaults. Build your own component library with code you can customize, extend, and make your own.

An agent-first linter for Tailwind design systems. Write design system rules that agents can verify.

A DeepSeek coding agent harness: persistent shell, Ultra subagents, auto approval, Chrome MCP and session telemetry

🎨 Best DeepSeek Harness Design Plugin. The open-source Claude Design alternative. 🖥️ Local-first desktop app. 🖼️ Your coding agent becomes the design engine: prototypes, landing pages, dashboards, slides, images & video — real files, HTML/PDF/PPTX/MP4 export. 🤖 Claude Code / Codex / Cursor / DeepSeek Harness / OpenCode & 20+ CLIs via BYOK.

Local UI to run and train LLMs and diffusion models. Supports GGUF, MLX, Qwen3.8, DeepSeek-V4, MiniMax-H3, Gemma 4, FLUX and more.

A native music streaming client, built with Rust and GPUI

Spotify, native and fast. One lightweight Rust app for your whole library, local playback, and Spotify Connect on Linux, macOS, and Windows.

Penpot: The open-source design platform for Product teams that need scalable collaboration.

FastAPI framework, high performance, easy to learn, fast to code, ready for production