Motrix

Back up your existing Motrix data and downloads before testing. The desktop Migration Assistant imports selected v1 tasks as paused records and preserves the original files. Resuming downloads requires a separate explicit action. Windows in-place BT activation requires a build with the native migration-capable engine; the beta.50 package does not include it. See the migration guide for supported volumes, file permissions, and recovery. Keep a backup of the v1 profile and the engine's pre-upgrade database snapshot. When practical, test v2 in parallel using a separate OS account, machine, or Docker data directory.

Screenshots

Dashboard

Downloads

Settings

✨ Features

• 🕹 Clean, intuitive interface with dark mode
• 🦄 BitTorrent downloads with per-file selection, plus magnet link support
• 📡 Built-in tracker list management with automatic updates and health checks
• 🔌 UPnP and NAT-PMP port mapping
• 🚥 Upload and download limits with multiple speed-limit profiles
• 💾 SQLite-backed sessions that restore downloads after a restart
• 📊 Customizable Dashboard with transfer stats, live activity, and task tiles
• 🔔 System notifications when downloads finish, plus an in-app notification center
• 🧩 QuickJS-based plugin sandboxing, fine-grained permissions, and an in-app marketplace
• 🌐 Motrix Extension for Chrome, Edge, and Firefox hands browser downloads off to Motrix in one click
• ⌨️ Official @motrix/cli client for everyday shell use and AI agents
• 🐳 Docker-ready headless server with secure device-code pairing for remote CLI and agent clients
• 🎬 Extensible URL Resolver plugins for extracting media from supported sites
• 🤖 System tray integration and launch at startup
• 🌍 Simplified Chinese and English UI, with more languages planned
• 🔗 Handlers for motrix:// and magnet: links, plus .torrent file associations

🧩 Ecosystem

Motrix extends beyond the desktop app with a shared protocol library, command-line client, browser extensions, and a complete plugin toolchain:

CLI quick start

npm install -g @motrix/cli    # Requires Node.js 22 or later

motrix add https://example.com/file.iso --save-dir ~/Downloads
motrix list                   # List downloads
motrix watch --stats          # Stream live progress as NDJSON
motrix pair --name my-nas     # Pair with a remote or headless instance

Build a plugin

The Motrix Plugin SDK provides the TypeScript API, manifest schema, project scaffolder, and CLI used throughout the plugin development workflow:

pnpm create motrix-plugin my-plugin
cd my-plugin && pnpm install
pnpm dev                         # Watch-build and launch Motrix with the plugin
pnpm exec motrix-plugin validate # Validate motrix-plugin.json
pnpm run pack                    # Create dist/<id>-<version>.moext
pnpm exec motrix-plugin lint     # Check the packed bundle

The default scaffold starts with a beforeCreate URL resolver. Pass post-action after the project name to start with an afterComplete notification plugin instead. Plugins can hook into beforeCreate, beforeFinalize, afterComplete, and onError, contribute callable commands and settings, and access the runtime through the motrix:plugin-api virtual module.

Plugins are bundled as a single ES2020 module and run inside a QuickJS sandbox without Node.js APIs or direct file and network access. Declare activation events, required capabilities, and URL-scoped host permissions in motrix-plugin.json; Motrix shows those requests to the user before granting access. See the Plugin SDK documentation for templates, the manifest and runtime API references, localization, sandbox constraints, packaging, and distribution.

Browser extension

Motrix Extension is available from the official browser stores for use with Motrix 2:

• Chrome Web Store
• Microsoft Edge Add-ons
• Firefox Add-ons

For installation and pairing, see the browser extension guide. Development builds remain available from the extension repository.

📦 Installation

Desktop app

Download Motrix from motrix.app and choose the package for your operating system. Most Mac users should choose the Apple Silicon build; Intel builds are available for older Macs with Intel processors.

After the remaining release gates pass, the current beta desktop packages will be distributed through the GitHub prerelease linked above. The protected release tag also publishes verified Snap builds to latest/edge. Choose the package that matches your operating system and architecture:

The .AppImage asks on first launch whether to register its desktop entry and URL-scheme handlers under your user data directory; declining leaves your system untouched. You can enable or remove this desktop integration at any time from Settings → Integration. The Snap Store package is strictly confined. Its approved personal-files interface permits Motrix to register Native Messaging hosts for supported browsers; it does not grant general access to files outside the normal Snap interfaces. Release tags build and validate Flatpak application bundles for both architectures before publication. Older releases, including beta.39, contain only the Flatpak Native Host companion. These single-file bundles require manual upgrades; they do not configure a Motrix update repository. Windows arm64 and all 32-bit packages are not available. Windows x64 packages are unsigned and may trigger a Windows SmartScreen warning.

Command-line client

npm install -g @motrix/cli

You can also install it from Settings → Integration → Command-line tools in the desktop app.

Headless server with Docker

Tagged releases publish a multi-architecture Server image to Docker Hub and GHCR. Beta releases publish only the immutable version tag and do not update latest; the included compose.yaml keeps Server state separate from downloaded resources:

mkdir -p motrix-data downloads
sudo chown 1000:1000 motrix-data downloads
export MOTRIX_IMAGE='docker.io/motrixapp/motrix-server:2.0.0-beta.50'
export MOTRIX_PUBLIC_URL='http://nas.example.lan:8080'
docker compose pull server
docker compose up -d --wait

The runtime is non-root, supports a read-only root filesystem, validates mount permissions before accepting work, and preserves downloads, sessions, and installed plugins across container replacement. The standard direct-LAN setup publishes the Web service on port 8080 and MDXP on port 16801. Set MOTRIX_PUBLIC_URL to the Web approval URL that remote clients can actually reach; the Compose files do not substitute a misleading localhost URL.

If the Web approval URL is temporarily unavailable, an SSH operator can list and approve the exact client code without exposing another port:

docker compose exec server motrix-admin pairing pending
docker compose exec server motrix-admin pairing approve ABCD-EFGH

Remote CLI and agent clients pair through the device-code flow. Browser extensions can pair with the headless Server when MOTRIX_REMOTE_EXTENSION_ENABLED=true and MOTRIX_REMOTE_EXTENSION_PUBLIC_URL is the WS/WSS address entered in the Extension. HTTPS remains the default operator requirement. A direct trusted-LAN HTTP operator additionally requires MOTRIX_ALLOW_INSECURE_OPERATOR_HTTP=true and produces a startup warning; never enable it on the Internet or an untrusted LAN. Internet access requires a TLS reverse proxy and firewall rules around the origin ports. See the Docker Server deployment guide for ownership setup, Docker Hub/GHCR image and tag selection, DSM 7 and fnOS installation, ports, diagnostics, and backup/upgrade instructions.

🛠 Development

Development requires Node.js 22 or later and pnpm. Use the pnpm version specified by the packageManager field in package.json.

git clone https://github.com/agalwood/Motrix.git
cd Motrix

pnpm install     # Install dependencies, download aria2 for your platform, and rebuild native modules
pnpm start       # Start the Electron app in development mode with Vite HMR in the renderer

pnpm test        # Run the Vitest unit tests
pnpm test:e2e    # Run the Playwright E2E tests
pnpm run lint    # Run Biome checks

pnpm build       # Fetch signed built-in plugins, then build the native host and four Vite targets

Preview the in-window application menu on macOS

Windows and Linux render the application menu inside the Motrix window. To preview that chrome while developing on macOS, start the app with the preview flag enabled:

MOTRIX_PREVIEW_MAC_MENU=1 pnpm start

The flag hides the main window's macOS traffic-light buttons, enables the renderer dropdown menu, and shows the custom window controls used on Windows and Linux. Collapse the sidebar in this mode to check the application menu, attached actions, drag region, and caption-control safe areas together. Restart the development process after changing the flag because both Electron and Vite read it at startup.

This mode is intended for layout and command-item debugging. Electron routes macOS role items through AppKit's native menu, so role-backed actions such as Window → Minimize do not behave identically when invoked from the preview dropdown. Validate those native role actions on Windows or Linux.

See the scripts in package.json for the available packaging commands. Platform-specific settings for macOS, Windows, and Linux live in electron-builder.json.

🔧 Tech stack

The codebase has four strict layers. CI enforces the dependency boundaries between them, keeping the core portable and leaving a clear path for a future Rust rewrite:

renderer (React UI)
   |  IPC via window.motrix
app core (tasks, settings, plugins, bridge)
   |
engine adapter
   |
aria2 (download engine)

The Electron desktop app and the Node.js headless server share the same core. Platform-specific capabilities such as notifications and secret storage have separate implementations with consistent behavior.

🤝 Contributing

Contributions of code, tests, documentation, translations, issue reports, and design feedback are welcome. Before opening a pull request, read the contribution guidelines for the development workflow, architecture boundaries, implementation standards, and required validation.

All participants must follow the Code of Conduct. Report suspected vulnerabilities privately according to the Security Policy, not through a public issue or discussion.

📜 License

MIT © 2018-present Dr_rOot

See THIRD_PARTY_NOTICES.md for third-party license information. Release packages also include a generated dependency inventory, consolidated license texts, and an SPDX 2.3 SBOM under legal/.

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