SiaFTP Client

📁 SiaFTP Client — a modern, secure file transfer client for Android

SiaFTP Client brings professional FTP, FTPS, SFTP, and SCP file management to your phone and tablet in one calm, focused workspace. Connect to your servers, move files with confidence, and keep local and remote folders in sync.

🔐 Secure by design
• Passwords, key passphrases, and private keys are encrypted with the Android Keystore and are never stored in plain text.
• SSH host keys are verified on first use, and any key change is flagged before you connect.
• Import OpenSSH, PKCS#8, PEM, and PuTTY private keys for key-based login.
• Present a PKCS#12 client certificate for FTPS mutual TLS when a server requires it.

🌐 Every major protocol
• FTP, FTPS (explicit and implicit), SFTP, and SCP in a single app.
• Passive and active FTP modes with binary-safe transfers.
• Reach servers on restricted networks through HTTP CONNECT or SOCKS proxies.
• Choose a filename charset — UTF-8 or a legacy encoding — so older servers list names correctly.

🗂️ Local and remote browsing
• Browse real device folders through the Storage Access Framework — access stays scoped to the folders you choose.
• Navigate remote directories, sort by name, size, or date, and search quickly.
• Create folders, rename, delete, and edit UNIX permissions with an octal and symbolic chmod editor.

⏫ Reliable transfer queue
• Queue uploads and downloads and watch progress in real time.
• Transfers keep running in the background with an ongoing notification and a cancel action.
• Pause, resume, retry, and continue interrupted transfers where the server supports it.

🔄 Folder synchronization
• Compare local and remote folders and preview every change before it runs.
• Choose upload-only, download-only, or bidirectional sync.
• Pick a conflict policy — newer wins, local wins, remote wins, skip, or ask — and confirm any destructive mirror step.
• Schedule sync to run automatically in the background, with Wi-Fi-only and charging-only options, and start it from a home-screen widget.

📤 Share from anywhere
• Share files from Gallery, Files, or any app straight into SiaFTP and queue them for upload.

🌍 In your language
• Available in English, Korean, Japanese, Simplified Chinese, and Spanish, with an in-app language switch.

📱 Designed for every screen
• A clean Material 3 interface with a two-pane layout for tablets and foldables.
• Full light and dark themes, large-text support, and thoughtful empty, loading, and error states.

Whether you manage a website, a home server, or a NAS, SiaFTP Client helps you get files where they need to be — quickly, securely, and clearly.