Find the open-source solution that fits.

Pasteboard Viewer helps developers verify exactly what their apps place on NSPasteboard or UIPasteboard. It refreshes content live and can preview text, RTF, images, and other items supported by Quick Look, with an option to keep the macOS window in front. It is a debugging utility rather than a clipboard history manager, and the current release requires macOS 26, iOS 26, or visionOS 26, with older macOS builds available separately.

Parallel Code creates a branch and Git worktree for each task, then launches Claude Code, Codex, Gemini, or another supported coding CLI inside the isolated directory. Its desktop interface keeps sessions, progress, and diffs together, supports inline review comments and head-to-head comparisons, and lets you merge selected results back into the main branch. A Git repository and at least one compatible CLI are required.

Claude Code Skill Factory provides guided agents, templates, and examples for creating Claude Skills, Claude Code agents, slash commands, hooks, and reusable prompts. Its workflow can choose between prompt-only and coded outputs, then add validation, documentation, examples, and ZIP packaging. A Codex CLI bridge also helps translate and synchronize agent guidance between tools, making the repository useful for teams producing many custom agent components.

MirrorX is the desktop client in an open-source remote-control stack; a complete self-hosted deployment also uses separate Portal Server and Relay Server components that can run on premises or in the cloud. The current client supports macOS and Windows and documents end-to-end encryption, GPU acceleration, and high-resolution remote control. The project is still at an early stage and does not guarantee backward compatibility. Linux, Android, iOS, and web clients remain work in progress rather than available targets.

Access Matrix conversations through a dedicated Tauri desktop client with a deliberately simple interface. Installers are published for Windows, macOS, and Linux, with additional distribution through Scoop on Windows and Flatpak on Linux. Release files are signed with an Ed25519 key, and the repository provides a minisign procedure for users who want to verify a downloaded package before installing it. The project is specifically the desktop wrapper, rather than a general Matrix server or protocol implementation.

Quick Picture Viewer is a lightweight Windows image viewer that opens common formats along with files such as WebP, SVG, DDS, PSD, and CR2. Users can rotate, flip, crop, convert, run slideshows, use picture-in-picture mode, print images, or export them to PDF. Plugin support adds extra effects and tools, while the Windows-only scope makes it primarily an alternative to the default photo viewer.

This dashboard connects to Claude Code's native hooks, records session and tool events in local SQLite, and streams updates to a browser or macOS and Windows desktop app over WebSockets. It surfaces active agents, tool usage, health metrics, notifications, activity feeds, and Kanban-style status, making it easier to observe complex subagent orchestration as it happens.

This collection gives Claude Code reusable workflows for MCP connections, presentations, programmatic video, SOPs, skill creation, and consistent brand voice. Detailed guidance loads only when a task calls for it, keeping the working context focused. Some skills work immediately, while MCP, presentation, and Remotion workflows require their own configuration or project setup.

FlyAI connects Claude Code, OpenClaw, and other compatible agents to Fliggy travel inventory. Users describe dates, destinations, and preferences in Chinese or English, then receive structured JSON for flights, hotels, attractions, concerts, and related options. Agents can filter, compare, or render the results, and items may include direct booking links. Basic use works without configuration, while an optional API key enables enhanced access. The workflow requires both the skill and its Node.js CLI, so it is not a standalone booking app.

Soul of Waifu is a Windows desktop roleplay and AI companion app with Live2D or VRM avatars, voice conversations, emotional reactions, long-term story memory, and a transparent desktop companion mode. It can search and download GGUF models inside the app and run them locally through llama.cpp, while cloud providers remain optional. Windows 10 or 11 and at least 8 GB of RAM are required, with a capable GPU recommended for local generation.

Duckle is a local-first desktop studio for wiring data sources, transforms, validators, and sinks on a visual canvas. It compiles the graph to SQL and runs it through DuckDB, while an on-device assistant can generate pipelines from plain English. The app includes hundreds of components, scheduling and Git workflows, and can export a pipeline as a self-contained executable for headless servers without requiring Duckle to be installed there.

Atom is a self-hosted platform for running business workflows from text or voice requests. Specialized agents plan and execute work across connected services, while visual workflows, memory, and governance levels help operators control how tasks progress. Workflow data, agent state, and memory remain on infrastructure controlled by the operator. Prompts still go to a configured cloud model when bring-your-own API keys are used, unless local models such as Ollama or Llama.cpp are selected. Deployment requires operating the backend, frontend, database, and model configuration.

WeSight brings local coding agents such as Claude Code, Codex, OpenClaw, and Hermes Agent into a graphical desktop workspace. Users can reuse existing CLI accounts and configuration, or install supported engines through a macOS setup flow, then inspect commands, file changes, permission prompts, tool results, and generated artifacts inside a chat interface. Model routing covers official providers, Ollama, and custom OpenAI-compatible endpoints. The app also tracks token and runtime metrics, manages skills and scheduled tasks, and can route work through IM channels such as Feishu.

TweakPHP provides a focused desktop code editor for modifying and experimenting with PHP code. Builds are distributed for macOS, Windows, and several Linux package formats, including Homebrew, Snap, AppImage, RPM, Deb, and AUR. The project is explicitly labeled as beta, so it is best suited to users comfortable testing an early-stage application.

Electron React App is a starter project for building Windows, macOS, and Linux desktop software. It combines React, Vite, TypeScript, TailwindCSS, Shadcn UI, and packaging tools with a custom title bar, theme switching, error boundaries, and hot reload already configured. Its Conveyor layer validates communication between Electron’s main and renderer processes with Zod and TypeScript, giving developers a typed IPC foundation rather than a finished end-user application.

RocketSim extends Xcode’s iOS Simulator with tools for inspecting behavior, debugging interfaces and network activity, checking accessibility, and producing screenshots or recordings. Developers can trigger app actions and repeat test flows from the desktop app, while the RocketSim CLI and companion agent skill enable state-aware automation that inspects the visible UI before tapping, typing, or swiping. It is built specifically for iOS developers working with the Simulator rather than for general device automation.

CSharpGuidelines is a documentation collection for C# through version 14, covering coding rules, design principles, layout conventions, and companion Agent Skills. Teams can read the material on its website or build a full PDF and two-page cheatsheet from the repository, making it useful for shared coding standards and review practices. Building the PDFs requires the .NET 10 SDK and Google Chrome.

yahoo-finance2 is an unofficial JavaScript API for retrieving quotes, charts, historical data, options, company summaries, screeners, and other Yahoo Finance results. Developers can call it as a library, use its command-line interface, or optionally expose the same tools through MCP and the bundled Agent Skill. It supports Node.js, Bun, Deno, and compatible Cloudflare runtimes, but it cannot run directly in a browser because of CORS and cookie constraints. Yahoo does not guarantee API availability or consistency.