Splitting cold water feed

I have a standard cold water feed in my utility room with a 3/4 inch thread which has a washing machine attached as normal. I will like to split this feed and be able to attach a garden hose as I have no outside tap. Obviously I would need to be able to turn the feed to the hose on and off but leave the dishwasher on. I’ve looked at a few things online but can find nothing reliable. Does anyone have any suggestions?