What is it?

ShareDrop is a free app that allows you to easily and securely share files directly between devices without having to upload them to any server first.
How to use it?
Sharing files between devices in local network*

To send a file to another device in the same local network, open this page (i.e. www.sharedrop.io) on both devices. Drag and drop a file directly on other person's avatar or click the avatar and select the file you want to send. The file transfer will start once the recipient accepts the file.
Sharing files between devices in different networks

To send a file to another device in a different network, click + button in the upper right corner of the page and follow futher instructions.
Signing in

Additionally, you can sign in using Persona to allow others to easily recognize you. This will show others your email address and also your Gravatar, if you have one.