Wisfer app icon

Your phone, your file server

Turn your Android device into a blazing fast, multi-protocol file server. Transfer photos, videos, and large files wirelessly over FTP, FTPS, SFTP, and Web HTTP — no cables, cloud uploads, or speed limits.

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Core Server Protocols

Versatile, high-speed transfer protocols engineered for speed, privacy, and universal device compatibility.

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FTP (File Transfer Protocol)

Connect natively from Windows File Explorer, WinSCP, macOS Finder, FileZilla, or Total Commander. Fast, universal, and fully configurable with custom active/passive port ranges.

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FTPS (TLS / SSL Encryption)

End-to-end encrypted file transfers with TLS. On-device RSA certificate generation keeps sensitive files secure across untrusted Wi-Fi hotspots and shared networks.

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SFTP (SSH File Transfer)

Secure subsystem running over SSH. Supports modern Ed25519 & classic RSA host keys, public key cryptographic authentication (authorized_keys), and granular permission controls.

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HTTP & HTTPS Web Portal

Modern browser interface with responsive sidebar file tree, dynamic breadcrumbs, drag-and-drop batch uploads, in-browser media streaming, and one-click zip folder downloads.

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Passwordless Device Prompts

Log in securely to the web interface without typing credentials — simply tap "Allow" on the instant notification prompt displayed on your Android phone, or use static tokens.

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Full Storage & SAF Support

Direct filesystem access, internal storage, external SD cards, USB OTG drives, and Android Storage Access Framework (SAF) folder picker with read/write controls.

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Multi-User Management

Create distinct user accounts with dedicated root folders, custom credentials, read-only or read-write permissions, and optional anonymous guest access toggles.

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Gigabit Local Speeds

Zero cloud intermediaries. Transfers run at the maximum physical speed of your local Wi-Fi router or mobile hotspot (up to 1+ Gbps on Wi-Fi 6/6E/7).

Advanced Features & System Integration

Wisfer integrates deeply into the Android ecosystem for instant sharing, automation, and effortless controls.

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System Share Sheet Integration

Share photos, videos, and documents directly to Wisfer from any app with Receive QuickShare (instant auto-save) or Save As (bottom sheet folder picker).

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Connected Devices Live Monitor

Real-time client tracking sheet shows active connections, device types (PC, Mac, mobile), IP addresses, active transfer protocols, and live session activity.

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QR Protocol Swipe Pager

Swipe effortlessly between QR codes for FTP, FTPS, SFTP, and Web HTTP. Tap any QR code to enlarge it in a dedicated dialog for quick camera scanning.

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Quick Settings Tile

Start or stop your file server with a single swipe from your notification shade, featuring optional lock-screen unlock verification for enhanced security.

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Home Screen Widget

Instant server status indicator and one-tap Start/Stop toggle widget placed right on your Android launcher home screen.

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Tasker & Locale Automation

Built-in Tasker plugin actions and broadcast intents to automatically trigger server startup on home Wi-Fi or when connected to power.

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Wi-Fi & Hotspot Auto-Trigger

Auto-start server listeners as soon as your device connects to designated Wi-Fi networks, and auto-stop when disconnecting to preserve battery.

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Key & Fingerprint Inspector

Inspect, copy, and share Ed25519/RSA SSH host keys and TLS certificates in SHA-256 HEX and Base64 formats to ensure safe client verification.

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WakeLock & Background Resilience

High-priority foreground service with CPU wakelock keeps multi-gigabyte transfers rock-solid even when your phone screen is turned off.

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Material You Dynamic Theming

Modern Jetpack Compose UI with wallpaper-matched Material You dynamic palettes, OLED dark mode, and customizable system themes.

How it works

Get your wireless file transfer server running in three simple steps.

1

Launch & Tap Start

Connect your phone to Wi-Fi or turn on your Personal Hotspot. Open Wisfer and tap the prominent Start Server button.

2

Enter the URL or Scan QR

Open File Explorer, Finder, WinSCP, or a web browser on your PC/Mac. Enter the address (e.g. ftp://192.168.1.5:2121 or http://192.168.1.5:8080) or scan the enlarged QR code.

3

Transfer Files at Full LAN Speed

Drag and drop files, backup photos, stream media, and browse your storage directories wirelessly with high-speed local throughput and zero internet dependency.

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Private, Local, Offline First.

Wisfer operates entirely on your local network. Your files, keys, and credentials never pass through external servers, cloud databases, or third-party tracking services.

cloud_off 100% Offline Local
visibility_off Zero Telemetry / Trackers
battery_charging_full Battery Optimized