Desktop App GitHub Repositories (2026) · Open Source Tools

A curated collection of open-source macOS applications built with Swift

The music player of today! :city_sunrise:

Free open-source desktop app that scrapes JAV metadata and generates NFO + cover art for Jellyfin, Emby & Kodi. No Docker, no CLI — one-click install on Windows & macOS. 8 built-in sources + optional Metatube federation (30+ providers), actress collections, cross-language tag aliases, and a REST API for AI agents.

🐱 BongoCat — A cross-platform interactive desktop pet that brings fun to your desktop!

Local-first cross-platform desktop workspace for Claude Code / agents: multi-agent, Git worktrees, code diffs, skill marketplace, multi-model, Computer Use, task-aware desktop pets, with WeChat, Feishu, DingTalk, Telegram, WhatsApp and H5 access.

The Fully Customizable Desktop Environment for Windows 10/11.

BleachBit system cleaner for Windows and Linux

The desktop app and web ui for PlainApp to manage your phone data.

AI-powered GitHub stars manager with semantic search, auto-categorization, and release tracking

Safety-first disk cleaner and space analyzer for macOS and Windows, with duplicate cleanup, app uninstall, startup management, system optimization, and maintenance.

Cross-device clipboard sync for macOS, Windows & Linux — end-to-end encrypted, LAN-only, no cloud. OCR, CLI and MCP server built in.

MarkMello is an app for quickly opening and reading Markdown files, with an optional edit mode.

A desktop app for Markdown notes. Write, search, link notes, and keep every file in your own folder.

A fully functional AI Agent desktop client that supports Webui access and can be creatively customized and expanded!

Orkas is an open-source, local-first AI desktop app: a commander LLM directs specialist sub-agents, and runs your installed coding CLIs — Claude Code, Codex, OpenCode, OpenClaw, Hermes — as local sessions. Agents self-evolve via reflection and skill crystallization. BYO keys. macOS / Windows / Linux.

Open-source, local-first conversational AI video editor with a professional multi-track timeline, Agent Skills, MCP integration, and Remotion rendering.

🍙 A personal AI agent & local memory hub for all AI agents, gives every AI one shared, fully controlled memory and persistent context — all AI remember the same you. Now supports Claude Code, Codex, OpenClaw and Hermes Agent etc.

A modeling solution for BPMN, DMN, and Forms based on bpmn.io. As a companion tool to your favorite IDE it supports you in implementing solutions with Camunda.

Minimalist, data-oriented pomodoro timer for Android and Desktop based on Material 3 Expressive

Open-source desktop AI agent workspace with one-click Claude Code, Codex, OpenClaw, Hermes Agent setup and custom LLM model routing.