Yes, there is an option: IK Multimedia USB interfaces.

You do not need recording software to use it. Quote from Sweetwater'siRig 2 page:

"Inspiration doesn't always strike at the most convenient time, but now it can. Because the iRig HD 2 is so portable, you can have a massive arsenal of amps and stompboxes wherever you are. And, it's perfect for those late nights when cranking your amp up to 10 isn't an option."

Works with Mac or PC and comes loaded with amp software. I've had an IK interface for several years. I did a review here on GT a few years ago and most of what I thought still stands, albeit IK has evolved their products: Link >>