Hi
This is my problem !
I have one Mac without USB and one PC withe many USB ! And I what know if it's possible to plug the Arduino on my PC and upload sketch from my Mac 
My solution is to use TeamViewer on LAN and upload file with app installed on Windows.
Are there any possible alternatives?
Another idea it's to plug Arduino on Raspberry and upload from this !
The ONLINE editor is not quite at that stage just yet apart from such as the YUN boards where IP's can be used.
It is possible to do as you described and there are other similar methods.
WiFi enabled can sometimes do OTA as well.
There is no Mac without USB since 1999. Are you sure there is no USB port?
I do not see an easy way to do that.
You would have to create a platform.txt with for upload that... uploaded the file onto the PC (via FTP or network share), then somehow kicked off avrdude on the PC (via some mechanism that you'd have to create).
Why can't you plug the arduino board into the mac? You can use an inexpensive USB hub to get more ports - all the macs in recent times have had USB...
olf2012:
There is no Mac without USB since 1999. Are you sure there is no USB port?
I have USB-C...
DrAzzy:
Why can't you plug the arduino board into the mac? You can use an inexpensive USB hub to get more ports - all the macs in recent times have had USB...
I have a USB-C adaptor but I don't know. I justo want to use my mac without plug no more than external display