The standard for transferring data and variables between survey systems
Illustration of international data interchange
Triple-S is based on the international XML standard and is freely available to software developers and users. The standard has been implemented by numerous survey software packages.


September 2021

The online Triple-S XML Validator is no longer available. This is due to changes in the minimum security protocol used to establish internet connections. Please contact the Triple-S Group if this will affect your work.


August 2017

We are so sorry to have to report that Ed Ross, a key and wonderful member of our team, has passed away.

As a member of the Triple-S Group since 2000, Ed made a fantastic and sustained contribution to our work over a long period of time and he will be sorely missed by his many friends. RIP Ed. A full obituary can be found here



Survey Software Users

Easily port your surveys between software packages
maintain the maximum meaning in your response data.

If the software you use does not currently implement an appropriate Triple-S import or export, contact the software author and point them in our direction!

Compatible Software Free Conversion Software Online Validator Presentations


Survey Software Authors

Give your users the ability to import and export surveys to/from almost 100 other survey systems.

The Triple-S standard is based on the XML standard and is freely available to software developers and users.
The current version of the standard is Triple-s XML 2.0.

Download Specification Online Validator Compatible Software Register


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