Survey data and support files produced as part of an evaluation of large-scale online behaviour change intervention aimed at wildlife product consumers in Singapore. It is comprised of five support files: (S1) a survey methodology document, (S2) Survey questions in MS Excel format, (S3) Survey result data in MS Excel, (S4) a consumer results document, and (S5) a shopkeeper results document. All files are hosted on Figshare - click the 'File record' button to visit the relevant web page, or the 'download' button to download files directly.