jsFiddle does not provide backbonejs library through its Frameworks & Extensions dropdown. Thankfully, it allows you to add any external resources via External Resources option. I have made this blank template for you guys to start playing with Backbonejs in jsFiddle. Feel free to use it directly or fork it.
Author: Deepu Mohan Puthrote
This work by Deepu Mohan Puthrote is licensed under a Creative Commons Attribution 4.0 International License