Transfer multi-gigabyte files, folders, and datasets directly between computers across local Wi-Fi and global WAN. End-to-end encrypted, parallel sliced, and auto-resumable.
Raydrop  Universal Transfer Engine
LAN Direct (192.168.1.6)
production-database-dump-2026.sql
Parallel Workers: 6 active slices • ChaCha20-Poly1305 Encrypted
98.4 MB/s
ETA: 4 seconds
MacBook-Pro-M3 (Studio)
Own Device • Verified X25519 Key
ThinkPad-X1-Workstation
WAN Peer • dokploy NAT traversal
Cloud storage services upload your file first to an intermediate data center, then force the receiver to download it back. Raydrop connects peers directly.
Up to 125 MB/s
True Gigabit LAN & High-Speed WAN Direct TCP/QUIC
10 – 25 MB/s
Bottlenecked by datacenter upload + download
LAN Only
Locked to proximity and single OS ecosystems
Designed with Rust and Tauri for near-zero memory footprint and raw multi-threaded socket acceleration.
Large files are dynamically sliced into 512KB binary chunks and transferred concurrently across 6 parallel worker streams, fully saturating multi-gigabit connections.
Wi-Fi drops out or PC gets rebooted? Raydrop tracks chunk bitmaps in local SQLite. When the peer reconnects, transfers resume right from the exact byte without data loss.
Every session derives temporary keys via X25519 ECDH + HKDF-SHA256. Payload chunks are authenticated using ChaCha20-Poly1305 with BLAKE3 cryptographic integrity hashes.
Detects all physical and virtual network adapters (Wi-Fi, Ethernet, VPN), automatically ranking and connecting via the fastest direct subnet in under 10 milliseconds.
Seamless 1-click Windows 11 integration bypasses the collapsed "Show more options" menu. Right-click any file or folder and click "Send with Raydrop" immediately.
Automatic background update notifications. Users can upgrade their desktop app directly with a single click, with real-time download speed and automated setup restart.
Our signaling server (stun.raydrop.web.id) acts purely as a handshake coordinator. Files are never received, stored, or indexed on the server.
Files travel directly from Peer A's hard drive to Peer B's hard drive through encrypted direct TCP / QUIC sockets. Even if someone intercepts the signaling server database, no file names, hashes, or bytes exist there.
Each transmission is protected with modern cryptographic primitives. Data tampering or bit-rot is immediately detected and discarded at chunk boundaries.
1. Discovery: mDNS probe (LAN) + STUN reflex (WAN)
2. Signaling: wss://stun.raydrop.web.id (Handshake)
3. ECDH: Ephemeral X25519 Key Agreement
4. Direct TCP: Peer-to-Peer 6-Stream Socket
5. Verification: BLAKE3 Chunk Checksum Validation
Compatible with Windows 10 & 11 (64-bit). No telemetry, no ads, 100% free and open-source forever.
Full Windows integration with Auto-Updater & Explorer Right-Click Menu
File: Raydrop_1.1.1_x64_en-US.msi
Size: 8.64 MB
Run directly from USB drive or folder without installation
File: Raydrop_1.1.1_x64-portable.exe
Size: Standalone Binary
All versions and source code available on GitHub Releases
