⚡ ZeroSend v2.4.1 (Shared Folders, HTTP 206 Streaming, Vim Viewer & Portable Mode)

Ultra-fast, lightweight, peer-to-peer file & text sharing designed specifically for ZeroTier, Tailscale, Radmin VPN, and LAN networks.

ZeroSend 2.4.1 is a modern, standalone, privacy-first alternative to LocalSend that is explicitly optimized for virtual mesh networks (ZeroTier, Tailscale, Radmin VPN). It features Network-wide Shared Folders with Read-Only / Read-Write permissions, instant HTTP 206 partial content streaming for video and music without waiting for downloads, an authentic embedded lightweight Vim code and text viewer, a self-contained single-folder portable storage mode (config.json), mobile-first Web dropzone with camera/voice-notes shortcuts, dual QR access links, 4-stream parallel chunk streaming, on-the-fly folder ZIP compression, and dynamic light/dark themes.

✨ Features Overview

📁 1. Network Shared Folders & Media Streaming (v2.4.1)

My Shares: Select any folder on your hard drive to share with friends over ZeroTier/LAN. Configure Read-Only (streaming & download) or Read & Write (friends can upload files directly to your folder), protected with an optional 4-digit PIN code.
Network Shares Explorer: Browse your friends' shared directories with interactive breadcrumb path navigation and instant search filtering.
🎬 Instant HTTP 206 Media Streaming: Watch shared movies, TV series, or listen to music on-the-fly with instant seeking without having to download the entire file first.
⚡ Embedded Vim Code & Text Viewer: Inspect .rs, .py, .js, .ts, .html, .json, .toml, .cpp, .md, and .txt files directly inside ZeroSend with genuine Vim keybindings (j/k, Ctrl+d/Ctrl+u, gg/G, / pattern search with live highlights, :q exit, :<line> line jump).
📦 Single-Folder Portable Mode: All configuration (config.json), downloads, and settings are created and saved directly inside the folder where zerosend.exe is located.
🔄 Zero-Config Auto-Sync: Shared folders are broadcast dynamically via discovery beacons (DiscoveryBeacon), automatically appearing when a peer joins the mesh network.

📱 2. Mobile-First Web Dropzone & PWA (v2.4.0)

Mobile-First Touch Dashboard: Optimized for iOS and Android with direct 📸 Photos/Videos, 📄 Documents, and 🎙️ Voice Note recording action chips.
Thumbnail Gallery Previews: Real-time preview of selected photos and images before sending, with 1-tap delete chips.
🎙️ Mobile Voice Notes: Built-in Web Audio recorder with live sound wave animation and instant delivery to PC.
📲 PWA Standalone App: Add to Home Screen support on iOS and Android with custom app icons and manifest.
Dual QR & Access Links: Separate ZeroTier/VPN mesh link (http://<zerotier_ip>:53318) and Home Wi-Fi/LAN link (http://<local_ip>:53318) with 1-click copy, QR code, and browser launch.
🛡️ SHA-256 Checksum on the Fly: Cryptographic hash integrity verification computed in parallel during transmission with green badge status.

⚡ 3. High-Performance Multi-Stream Engine

4-Stream Parallel Chunk Transfers: Automatically splits single large files or batches into concurrent 4x HTTP/TCP streams, eliminating TCP window bottlenecks over VPN links.
Chunk Auto-Retry & Fault Tolerance: Automatic retry (up to 3 attempts) for failed chunks on Wi-Fi or VPN micro-disconnects without dropping the whole transfer.
Dynamic Adaptive Chunk Sizing: Scales chunk granularity from 512 KB (small files) up to 8 MB (huge 10GB+ archives) to maximize throughput and minimize overhead.
Live Ping & Latency Indicator: Real-time round-trip latency (🟢 12 ms / 🟡 65 ms / 🔴 140 ms) displayed right next to each peer in the Nearby list.
Custom Bandwidth Speed Limiter: Token-bucket upload rate limiter with interactive custom numeric input and 1-click presets (Unlimited, 5, 10, 25, 50, 100 MB/s).
Resumable Transfers (.zerosend_part Checkpointing): Interrupted transfers seamlessly resume from the exact last chunk offset.
Pinned Favorite Friends: Star (⭐) frequently used friends in the Nearby tab to pin them to the top.

📦 4. On-The-Fly Folder ZIP Compression & Auto-Extract

10x Faster Folder Sharing: Packages directory trees into streaming Deflate ZIP archives on the fly.
Automatic Extraction: The recipient's ZeroSend automatically extracts the received ZIP folder right into their Downloads directory.
Web & Mobile Friendly: Mobile devices downloading via QR code get a clean single .zip file with 1 tap.

🎨 5. Dynamic Theme & Desktop Polish

🌓 Auto Dark/Light Theme: Automatically synchronizes with Windows 10/11 system theme or allows forcing Always Dark / Always Light with high-contrast text readability.
System Tray Resident: Minimizes cleanly to the Windows system tray with auto-popup on incoming file requests.
Drag & Drop Anywhere: Drag files or folders into the window or directly onto a peer's card in the Nearby list.
Clipboard Screenshots (Ctrl+V): Paste screenshots directly from clipboard to queue them for immediate transfer.

📜 Version History (Changelog)

v2.4.1 (Current Release)

📁 Shared Folders Tab: Dedicated Shared Folders management with Read-Only / Read-Write permissions and PIN security.
🎬 HTTP 206 Streaming: Instant real-time video/audio streaming with seeking without downloading entire files.
⚡ Built-in Vim Code Viewer: Terminal-style code viewer with full Vim keybindings, search (/), and line jump.
📦 Single-Folder Portable Mode: All settings (config.json) and downloads are created & saved right in the exe folder.
🔄 Auto-Sync: Real-time discovery beacon broadcasting of shared folders when connecting to ZeroTier/VPN.

v2.4.0

🛡️ SHA-256 Checksum on the Fly: File integrity calculation & verification during streaming with green verification badges.
📸 Mobile Media Previews: Thumbnail gallery previews for photos with instant remove buttons before uploading.
🎙️ Mobile Voice Notes: Built-in voice recorder with live audio wave pulse animation and one-tap delivery.
📲 PWA Support: Web App Manifest & Add to Home Screen standalone install capabilities for mobile browsers.
🎨 Auto Theme: Dark/Light theme mode with Windows Registry theme sync & contrast fixes.

🚀 Building from Source

cargo build --release

The compiled standalone binary will be located at: target/release/zerosend.exe

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