A full-featured download manager — rebuilt from the ground up
Motrix by agalwood was one of the best open-source download managers available — clean UI, aria2-powered, cross-platform. It inspired thousands of users and developers alike.
However, the original project has been largely inactive since 2023. The Electron + Vue 2 + Vuex + Element UI stack accumulated technical debt, making it increasingly difficult to maintain, extend, or package for modern platforms.
What we kept
We owe a great deal to the original Motrix and its community. The following were gratefully adopted and continue to serve as the foundation for parts of Motrix Next:
- Aria2 error code system and RPC client — the error handling conventions and JSON-RPC communication layer for the aria2 engine
- Internationalization — 25+ community-contributed locale files covering Chinese, Japanese, Korean, Arabic, French, German, and many more
- Download utilities — tracker list management, cURL command parsing, and other protocol-level helpers
What we rebuilt
Motrix Next is not a fork — it is a complete rewrite. Every other layer of the application has been redesigned and reimplemented from scratch:
| Layer | Motrix (Legacy) | Motrix Next |
| ------------ | ----------------------- | ------------------------------- |
| Runtime | Electron | Tauri 2 (Rust) |
| Frontend | Vue 2 + Vuex | Vue 3 Composition API + Pinia |
| UI Framework | Element UI | Naive UI |
| Language | JavaScript | TypeScript + Rust |
| Styling | SCSS + Element theme | Vanilla CSS + custom properties |
| Engine Mgmt | Node.js `child_process` | Tauri sidecar |
| Build System | electron-builder | Vite + Cargo |
| Bundle Size | ~80 MB | ~20 MB |
| Auto-Update | electron-updater | Tauri updater plugin |
Design & Motion
The overall UI layout stays true to Motrix's original design — the sidebar navigation, task list, and preference panels all follow the familiar structure that made Motrix intuitive from day one.
What changed is everything underneath. Every transition and micro-interaction has been carefully tuned to follow Material Design 3 motion guidelines:
- Asymmetric timing — enter animations are slightly longer than exits, giving new content time to land while dismissed content leaves quickly
- Emphasized easing curves — decelerate on enter (cubic-bezier(0.2, 0, 0, 1)), accelerate on exit (cubic-bezier(0.3, 0, 0.8, 0.15)), replacing generic ease curves throughout the codebase
- Spring-based modals — dialogs use physically-modeled spring animations for a natural, responsive feel
- Consistent motion tokens — all durations and curves are defined as CSS custom properties, ensuring a unified rhythm across 12+ components
What's Changed
Motrix Next v3.9.6 graduates the 3.9.6 beta line to stable with improvements across download input compatibility, clipboard auto-detection, BitTorrent networking, task display, file category matching, and desktop integration behavior.
✨ New Features
Clipboard management — App-owned copy actions no longer trigger the Add Task auto-detect popup.
aria2 input compatibility — Multi-line aria2-style task input is supported for URLs with per-task options such as out=.
BitTorrent IPv6 DHT — Added IPv6 DHT support and related configuration.
File category URL patterns — File category rules can match URL patterns with validation and localized hints.
Task status tags — Added clearer waiting and sharing states for task cards.
Download event bridge — Added an aria2 WebSocket event bridge for faster download notifications.
🛠 Improvements
Improved task list transitions and preserved task state during tab switches.
Kept RPC origin access enabled for local integrations.
Restored AppImage stripping in release builds after beta validation.
Added localized preference guidance across supported languages.
