Using an action registry to edit data across users and devices is described. In one or more implementations, a user editing data in an application requests to share the data with another user or another device for further editing. Responsive simply to the request or based on an exchange of content transfer information, the data is communicated to the selected user or device. Using information maintained by an action registry, a list of applications capable of editing the data is presented to the selected user or via the selected device. Upon selection of an application from the list, the selected application is launched. Once changes are made to the data by the selected user or device, those changes can be saved and the changed data automatically returned to the original user and/or device. The changed data can then be automatically presented to the original user or on the original device.