You can upload a maximum of 2GB per transfer using our free service. This can be 1 2GB file or several files which total 2GB.
If you need larger uploads you can upgrade to WeTransfer Plus. With Plus you can send up to 20GB per transfer.
There's no transfer limit either but keep in mind if you would like to send a file to many people, you are better off using the link transfer option. You will not receive an email confirmation for this but it is the best option when mass sending files.