Foobar2000 Mobile:FTP Server
This tool allows you to manipulate foobar2000 mobile's music library contents, without specialized software or cables. All you need is having your device connected to your local wifi network.
You have full read/write access to foobar2000's documents folder and can freely manipulate its contents.
iTunes music library cannot be accessed in any way.
Android versions 4.x and older let you freely manipulate device contents without any special workarounds.
Android versions 5.x and newer restrict write access to storage folders. foobar2000 mobile currently does not support writing to storage folders on such devices. A workaround will be available soon.
Note that Android does not let foobar2000 take port 21 which is the default for FTP connections. We use port 2100 by default instead.
Full read/write access to any folders indexed by foobar2000.
On Windows Phone devices, there's also private foobar2000 music folder residing within foobar2000's application data; it is not accessible to other apps.
Due to Universal Windows Platform restrictions, the FTP server cannot be accessed from the device running it, only from another device. You cannot test if it works or browse it from your local computer running it.
Currently we can't prevent Windows from putting foobar2000 process to sleep while the FTP server is running, you might want to temporarily change device's sleep settings before using this feature.