smbxfer

smbxfer is not another file manager—it is a specialized data transfer utility engineered for users who need to move large or complex files between devices without cloud dependency or speed caps.

Unlike standard sharing tools that rely on Bluetooth or Wi-Fi Direct with inconsistent performance, smbxfer operates as a direct peer-to-peer transfer client optimized for local networks. The application eliminates the need for intermediate servers, proprietary cables, or account registration. Instead, it establishes a secure, ad-hoc connection between source and target devices using the SMB (Server Message Block) protocol, which is natively supported by Windows, macOS, and Linux systems. This means you can push gigabytes of data from your Android device to a desktop computer or NAS drive at the maximum speed your router allows—no file size limits, no compression artifacts, and no third-party interception.

The core workflow is deliberately minimalistic: you select files or entire folders from your device storage, specify the target SMB share path (including credentials if required), and initiate the transfer. The app handles authentication, network discovery, and error recovery automatically. For advanced users, smbxfer provides configurable parameters such as buffer size, transfer mode (push vs. pull), and background operation—allowing you to queue multiple transfers while using other applications. The interface is text-driven and information-dense, prioritizing function over visual flair. Each transfer session shows real-time throughput in MB/s, estimated time remaining, and a log of completed files with checksum verification status.

Key advantages of smbxfer over conventional transfer methods:

• Protocol-native reliability: Uses SMB 2.0/3.0 with negotiated dialect support, ensuring compatibility with modern NAS devices, Windows 10/11 shares, and Samba servers. The app automatically falls back to SMB 1.0 for legacy systems when needed.
• Zero cloud dependency: All data stays within your local network. No data passes through external servers, which is critical for sensitive documents, large media archives, or proprietary project files.
• Unlimited file size handling: Tested with single files exceeding 50 GB (e.g., 4K video renders, disk images). The app does not impose arbitrary caps or split files unless you explicitly enable chunking for FAT32 formatted targets.
• Background transfer persistence: When the app moves to the background, transfers continue uninterrupted. The system notification provides live progress and quick cancel/resume controls. On Android 8+ devices, the app uses foreground service priority to prevent OS kill.
• Detailed error diagnostics: If a transfer fails, the log pinpoints the exact reason—permission denied, path not found, network timeout, or authentication mismatch. You can retry individual failed files without restarting the entire batch.

List of core operational features:

• Direct SMB file transfer with automatic network discovery and credential management
• Multi-file and folder selection with recursive subdirectory support
• Real-time transfer speed display with adaptive buffer optimization
• Checksum verification (MD5/SHA-1) on completion to ensure data integrity
• Persistent background operation with Android foreground service notification

Download mobile app now to eliminate cloud uploads, slow Bluetooth transfers, and unreliable email attachments. Gain direct control over your local data movement with a tool that respects your network speed and your privacy.

Disclaimer: This application requires an active internet connection for initial setup and SMB share discovery over local networks. The app contains no in-app purchases, no advertising, and collects no user data. It is designed for devices running Android 7.0 or higher. Large file transfers may consume significant device storage temporarily for buffering. Use on fully charged devices or while connected to power is recommended for extended transfer sessions. The developer is not responsible for data loss due to interrupted transfers; always verify critical file integrity after completion.