Desktop GUI apps & toolkits: top picks for 2026

An open source AI coding agent that runs in your terminal, with a desktop app and two built-in agents for building and planning changes.

Google's open-source SDK for building natively compiled mobile, web, and desktop apps from a single Dart codebase.

A cross-platform desktop GUI client for the Clash Meta (mihomo) proxy core, built with Tauri and Rust for Windows, macOS and Linux.

A desktop app that switches API providers in one click and manages MCP servers, Skills and prompts across Claude Code, Codex, Gemini CLI and other AI coding tools.

A framework for building cross-platform desktop apps with JavaScript, HTML and CSS, based on Node.js and Chromium.

A Rust framework for building small, fast desktop and mobile apps with any web frontend, rendered in the system webview.

Desktop app for running multiple coding agents side by side, each in its own git worktree, with a mobile companion for monitoring.

Dear ImGui is a bloat-free, dependency-light immediate-mode GUI library for C++ aimed at debug, tool and game-engine interfaces.

An open-source, clean-room photo editor rebuilt in pure Rust, with layers, masks, adjustment layers, type, vectors and real PSD file support.

A simple, elegant open-source Markdown editor with realtime WYSIWYG preview for Linux, macOS and Windows.

Packages any website into a lightweight desktop app for macOS, Windows and Linux with a single command.

An open source, general-purpose AI agent that runs on your machine as a desktop app, CLI, or embeddable API, for code and non-code tasks.

Cherry Studio is a cross-platform desktop AI client that connects to many LLM providers, local models and 300+ preset assistants.

Free multi-platform desktop SQL client and database tool supporting 100+ databases via JDBC and ODBC drivers.

Free, open-source desktop app that enlarges and enhances low-resolution images using AI upscaling models, running on Linux, macOS and Windows.

A opinionated, modern Linux distribution by DHH, built on Arch with a polished default desktop, theming and developer tooling preconfigured.

Jan is an open-source desktop app for downloading and running LLMs locally, offering a ChatGPT-like interface with an optional cloud model connection.

A cross-platform FFmpeg GUI for lossless cutting, trimming and remuxing of video and audio files without re-encoding.

Open-source desktop agent app and Rust library for running many AI agents with lower token use, memory and resource cost.

Desktop client for ChatGPT, Claude and other LLMs, running on Windows, macOS and Linux with local data storage.

Cross-platform desktop application for monitoring your network traffic, inspecting connections in real time, and exporting PCAP captures.

A Rust framework for building web, desktop, and mobile apps from a single codebase, with React-like components and signals.

A Go framework for building cross-platform desktop apps with a web frontend (React, Vue, Svelte, etc.) using native rendering engines.

Open-source screen recorder and editor for Mac, Windows and Linux that adds zooms, cursor polish and styled frames to demo videos.

An unofficial, Electron-based desktop app for YouTube Music with a plugin system for custom CSS and behavior changes.

A free, open-source desktop Cowork app that runs a built-in AI agent and coordinates multiple CLI agents like Claude Code and Codex.

Anki is a desktop flashcard program that uses spaced repetition to schedule reviews for memorization.

A desktop Swiss Army knife for developers, bundling about 30 small tools for encoding, formatting, converting, testing and generating data.

Cross-platform C++/Qt screenshot tool with in-app annotation editing, configurable capture shortcuts, and a CLI and DBus interface.

An automation tower defense RTS written in Java, where players build factories and logistics to supply turrets and defend their base.

A desktop image uploader that pastes or drags images, uploads them to image hosts like S3, GitHub, Imgur or Aliyun OSS, and copies the resulting link.

A desktop app for managing and switching system hosts file entries, built with Tauri, React and TypeScript.

A Windows-first graphical interface that manages software installs and updates across WinGet, Scoop, Chocolatey, Homebrew, APT, pip, npm and more.

An Electron-based desktop browser for testing websites across many device previews at once, with mirrored interactions and an MCP server for AI agents.

Browser extension and desktop app that translates, polishes and summarizes selected text using LLM APIs like ChatGPT, Azure OpenAI and MiniMax.

A starter template for building cross-platform desktop apps with Electron, React, TypeScript, and Vite.

Free, open-source desktop app where AI agents work on your local files, built on OpenCode and usable with any model provider or local Ollama models.

A native, local-first Rust alternative to Logitech Options+ for remapping buttons, DPI, and SmartShift on Logitech mice, keyboards, and webcams.

Open source Loom alternative for fast screen recording, polished editing, and shareable video links, with optional self-hosting.

Desktop app that transcribes and translates audio and video offline on your computer, built on OpenAI's Whisper.

Desktop app for macOS, Windows, and Linux that manages a markdown knowledge base as plain files backed by git.

Open-source AI coworker for your desktop that completes everyday tasks and security reviews, using your own model keys and approval-gated actions.

A Rust desktop GUI kit with 75+ styled components for building cross-platform apps on the GPUI framework.

A fast, open source desktop email client for Mac, Windows and Linux, built with Electron and a local C++ sync engine.

Python framework for building web, desktop and mobile apps with a Flutter-based UI, no frontend experience needed.

Desktop app that sends one prompt to many AI chatbots at once so you can compare their answers side by side.

Desktop client for Windows, macOS and Linux that adds transparent, client-side encryption to files stored in Dropbox, Google Drive, OneDrive and other synced cloud folders.

A Python framework for building browser-based web UIs and small apps without writing HTML, CSS or JavaScript.

Open-source desktop app for running a local multi-agent AI workforce that automates multi-step computer tasks, positioned as a free alternative to Claude Cowork.

An open source photography workflow application and non-destructive raw developer for managing, editing and exporting digital negatives.

Cross-platform desktop app framework for building small, fast apps with TypeScript in the main process and webviews, with Zig, Rust, Go, or Odin also supported.

A free, open source instant messaging and VoIP chat app for friends, groups and communities, with desktop, mobile and browser clients.

Open-source desktop tool that turns a link to a long podcast, interview or lecture into short vertical clips with subtitles, covers and publishing copy.

A customization marketplace for Windows programs that lets users install and manage community-made mods to change how apps behave.

Desktop package manager and inference UI that installs, updates and launches many Stable Diffusion web UIs such as ComfyUI, Forge and Fooocus.

A lightweight native Spotify desktop client in Rust that plays music locally and supports Spotify Connect on Linux, macOS, and Windows.

WinUI is Microsoft's UI layer of modern controls and styles for building Windows desktop apps, with WinUI 3 shipping in the Windows App SDK.

A ready-to-go Windows translation and OCR tool built with WPF, supporting a plugin system for translation and recognition services.

A graphical desktop app for building, running and managing containers and Kubernetes locally, built on Podman and other container engines.

A macOS GUI version of the Vim text editor, with native menus, full-screen modes, Touch Bar and macOS system integration.