As presented in prior EDDI conferences (EDDI 2016 & EDDI 2017) as a theoretical tool & project, we are now able to roll out the questionnaire editor developed as web portal initially for the use case of the German national election studies (GLES). The features of the questionnaire editor are: Creation and editing of questionnaires with questions, question grids and free statements Structuring order of questionnaires Translation of questions, answers, interviewer instruction, filter statements and free statements into (European) languages Workflow support through statistics on questions, e.g. from “not-worked-on” up to “in-field-questionnaire” sophisticate administration of users and roles and role management Simple discussion tool to discuss questions e.g. for question development Version history of any change on questions Native in DDI-L and export to Word files with templates Direct indexing and searching within the European Question Bank (EQB)