For sharing files between your own devices, AirDroid [1] would be the simplest one to use. It’s also accessible on web.airdroid.com so you can drop files on to

For sharing files between your own devices, AirDroid [1] would be the simplest one to use. It’s also accessible on web.airdroid.com so you can drop files on to the website and send to or receive from other devices. For sharing with random people, if you can’t send long URLs (through messages or even through a QR code), then you probably can’t ask them to install an app or visit a website I suppose. [1]: https://airdroid.com https://airdroid.com