Flying Carpet File Transfer
Theron Spiegl
Send and receive files between iOS, Android, Linux, macOS, and Windows: either over ad hoc WiFi with one device acting as hotspot, or over a network shared by both devices. No internet or cell connection required, just two devices with WiFi or Ethernet chips (and optionally Bluetooth). Other versions available for free at https://flyingcarpet.spiegl.dev.
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