SwiftMTP

Introduction: A modern MTP device management tool for macOS.

Tags:

SwiftMTP

SwiftMTP is a light-weight, modern, Swift-based utility for interacting with MTP (Media Transfer Protocol) devices on macOS. It allows users to browse, manage, and transfer files between a Mac and external devices like Android phones.

Inspired by OpenMTP, SwiftMTP uses the enhanced backend to provide a consistently high-performance transfer experience while maintaining a compact footprint.

Device Management: Easily connect/disconnect MTP devices and select specific storage devices.
File Browsing: Deeply navigate through device directories with a native macOS feel with Quick Look preview supported.
Bi-directional Transfer: Import and export files with support for Drag-and-Drop.
File Operations: Create new folders and delete files directly on the device.
Progress Tracking: Real-time transfer progress bars and status indicators.
Localization: Multilingual support via Localizable.xcstrings.

Screenshot

Main UI

Architecture

The project is structured to bridge high-level Swift with low-level MTP kernel interactions:

SwiftMTP/
├──SwiftMTP/                  # Main App Source
│   ├── SwiftMTPApp.swift     # Entry point
│   ├── Views/                # SwiftUI UI Layer
│   ├── Models/               # Data models
│   └── Services/             # KalamMTPManager (Connection & Transfer logic)
├──KalamShim/                # C shim bridging Swift and the MTP kernel
├──ffi/                      # Kalam backend source
├──CKalam/                   # Module map for C headers
└──lib/                      # Runtime dependencies (kalam.dylib, libusb.dylib)

Getting Started

Download

Release

Build

Prerequisites

Xcode 15.0+
macOS 12.0+

Build & Run

~~Please build Kalam backend first. Refer to ffi/kalam/native/README.md. This step will build necessary dynamic libraries (kalam.dylib & libusb.dylib) and will place them under lib.~~ Pre-compiled dylibs have been added. You can also compile them by yourself.
Open SwiftMTP.xcodeproj in Xcode.
Select your target platform (macOS).
Press Run.