Rayburst

Redefining the open-source download manager

Design & Motion

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

Features

- Multi-protocol downloads — HTTP, HTTPS, SFTP, ED2K, BitTorrent, Magnet, and .torrent tasks

- HLS and DASH — Native track selection, subtitles, live recording, resumable media downloads and MP4/MKV output. See media downloads.

- BitTorrent — Selective file download, DHT, peer exchange, encryption controls, metadata caching, GeoIP peer flags, and tracker probing

- Browser extension integration — Embedded Extension API with independent authentication, download confirmation, smart auto-submit, filename hints, referer/cookie forwarding, and real-time controls (Rayburst Connect)

- Safe filename handling — Content-Disposition, RFC 2047, non-UTF-8, percent-encoded, and extensionless URL resolution with path traversal sanitization

- Download organization — Favorite and recent folders, optional file-type categorization, stale-record cleanup, and completed history backed by SQLite

- Concurrent downloads — Independent limits for active tasks, stream connections, and BitTorrent peers

- Speed control — Global and per-task upload/download limits with day-of-week and time-of-day scheduling

- System integration — Tray operation, optional tray speed display, macOS Dock badge/progress, protocol handlers for magnet://, ed2k://, thunder://, and rayburst://

- Lightweight mode — Destroys the WebView on minimize-to-tray while Rust keeps the engine, task monitor, notifications, history, and extension routing alive

- Notifications and power options — Native task start/complete/failure notifications, keep-awake during downloads, and optional shutdown after completion

- Network controls — Scoped proxy support for downloads, app updates, and tracker updates, plus system proxy detection

- Auto-update channels — Stable, Beta, and Latest Across Channels policies with separate download and install phases

- Diagnostics — Structured logs, exportable diagnostic ZIPs, database integrity checks and Linux GPU rendering fallback

- Personalization — Light/dark/system theme, 10 color schemes, 27 languages, and first-launch system language detection

- Native desktop app — Tauri 2 with a Rust backend