Android File Transfer

A fast, native macOS app for transferring files between your Mac and Android device over USB（MTP）or Wi-Fi（ADB）：a Finder-like, open-source replacement for Google's discontinued Android File Transfer. Built with SwiftUI.

Overview

1. Browse
2. Transfer Files
3. Connect over Wi-Fi
4. Under the Hood
5. Requirements
6. License

Browse

A Finder-style source list of devices and storages on the left, and a multi-column file table（Name／Size／Kind／Date Modified）with a clickable breadcrumb path bar on the right.

• Live sync：the list updates the instant a file is added or removed on the device — no refresh, no reopen.
• Instant navigation：folders you've already opened reopen instantly from cache — no loading spinner — while refreshing in the background to stay current.
• Storage gauge：the path bar shows used／free percentage plus the free space available, turning orange then red as the device fills up.
• Finder conventions：double-click to open a folder, Return to rename, right-click empty space for New Folder, and create／rename／delete inline.

Transfer Files

Drag files from Finder onto the window to upload, and drag files out to Finder to download — both directions stream in the background.

• File promises：dragging a file out completes the gesture instantly and downloads in the background to wherever you drop it, instead of freezing while the whole file copies.
• Multi-file drag：select several files and drag them all out at once.
• Full-window progress：transfers cover the window with a frosted-glass overlay and a centered card — current file, overall progress, speed, and ETA — that clears itself the moment everything finishes, with retry-on-failure if a transfer fails.
• Large files：handles files larger than 4 GB in both directions.

Connect over Wi-Fi

No cable? Pair once and browse the device wirelessly — adb is bundled, so there's nothing to install.

• Three ways to pair：scan a QR code, type a pairing code, or connect directly by IP : port from the phone's Wireless debugging screen.
• Auto-discovery：paired devices on the same network are found over mDNS and connected automatically.
• USB wins：the same phone reached over both USB and Wi-Fi is de-duplicated into a single device.

Under the Hood

• MTPKit：a standalone, dependency-free Swift package that speaks the MTP protocol directly over IOUSBHost（no libmtp）, alongside an ADB-over-Wi-Fi transport — both behind one shared DeviceTransport abstraction. The app pulls it in via Swift Package Manager.
• SwiftUI + Observation：@Observable view models throughout, with async／await and actors serializing all USB／ADB I/O.
• Localized：English and 繁體中文 via String Catalogs.
• Zero third-party dependencies：QR codes via Core Image, discovery via the Network framework, USB via IOUSBHost.

Requirements

• macOS 26 or later
• An Android device — a USB cable, or Wi-Fi with Wireless debugging enabled
• Xcode 26 or later to build：open Android-File-Transfer.xcodeproj and run

License：MIT

This package is MIT licensed.