FTP Client

FTP Client is a file transfer client for your phone. Connect to your FTP, FTPS or SFTP server to browse directories, upload and download files, rename and delete — the way you would on a desktop transfer client.

■ Protocols
- FTP (plain)
- FTPS — explicit, AUTH TLS
- FTPS — implicit (port 990 by default)
- SFTP — over SSH (port 22 by default)

■ Features
- Site manager: save host, port, username and password for the servers you use often, then connect with one tap. Quick Connect is there when you don't want to save anything.
- Three tabs — Remote, Local and Queue — swipe between them; each side keeps its own directory.
- Upload and download, including recursive folder transfers and multi-select batches.
- Resume interrupted transfers from where they stopped (REST / APPE / SFTP RESUME).
- Background transfers run in a foreground service, so they keep going when you switch apps or turn off the screen. Progress and speed appear in the notification, with a Cancel All action.
- File management: create folders, rename, delete (folders are removed recursively).
- Passive (EPSV / PASV) and active (EPRT / PORT) connection modes.
- Directory listing compatibility: MLSD, UNIX-style LIST, and IIS MS-DOS-style LIST.
- Character encodings: UTF-8, Big5, GBK, Shift_JIS, EUC-KR, ISO-8859-1, for servers with non-UTF-8 filenames.
- Separate connections for browsing and transferring, so you can keep exploring while a large file is on its way.

■ Security
- FTPS data connections reuse the TLS session from the control connection, as stricter servers require.
- Optional "trust any certificate" for servers with self-signed certificates.
- SFTP host keys are pinned on first use (TOFU). If a fingerprint changes, the connection is refused; you can clear the stored key from the site settings.

■ Languages
English, Traditional Chinese, Simplified Chinese, Japanese, Korean, Spanish, French, German, Portuguese (Brazil) and Russian. Follows your system language by default, and can be switched inside the app.

■ Notes
- Requires Android 8.0 or later.
- The app requests All Files Access so it can browse your whole device and save downloads to any folder you choose.
- On some devices (Xiaomi, Huawei and others), set battery optimisation for this app to "unrestricted" so background transfers are not killed.
- Recent Android versions make external SD cards read-only; choose internal storage as the download destination.
- Note that plain FTP sends credentials and data unencrypted. Use it only on networks you trust, and prefer FTPS or SFTP over the internet.

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