mTask Board

mTask Board is a simple task manager that stores task lists and their respective tasks locally. You can drag and drop tasks list across the board or even tasks across task lists. We modified an open source product by Filip Stefansson for internal use at MicroHealth with the intent to connect it to Google Tasks api and offline storage. Currently, it only has offline storage and does not sync across devices. You are more than welcome to use the product however it is intended for MicroHealth employees therefore support will be limited.

Screenshots from Chrome Web Store