Notes
This tool is now considered stable although feedback is always welcome. Please report any bugs in this test suite by raising an issue in its GitHub repository where the primary JavaScript code can be found along with a copy of the PHP helper functions. You'll find a model linkset and a JSON schema for a linkset in a separate GitHub repositoty.
Please note that the test suite does not currently check support for compression. If you're interested in contributing to the development of the GS1-Conformant resolver standard, or any other GS1 standard, please consider joining our working groups. Details of how you can do this, for free, are on the main GS1 website.
Thanks to Louis-Axel Ambroise, Christian Beer, Sven Böckelmann, Relja Medić, Per Guth, Toby Gall and, of course, the developer of the free open source Community Edition of the resolver Nick Lansley.
Code last updated 2026-06-08