The Future-Self Continuity Continuous (FSC-C) measure was developed to study the extent to which people feel close to or connected with their future selves. The measure uses standard web technologies and can therefore be embedded in online surveys. The code, together with instructions on how to use it, can be found here. It has an MIT license, so is free to use by anyone. We do ask that, as a courtesy, if you use the measure for academic purposes, that you cite the following article.
Kamphorst, B. A., Nauts, S. and Blouin-Hudon, E.-M. Introducing a Continuous Measure of Future Self-Continuity. Social Science Computer Review, 2016.