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Onni: An online experiment platform for research

Heikkilä, Timo T.; Laine, Ossi; Savela, Juho; Nummenmaa, Lauri

Onni is a toolbox created for online experiments. You can think it as a merger of super simple E-prime or Presentation and hassle-free Webropol / Google docs that can also handle bodily sensation mapping (emBODY measurements). It is geared towards getting fast ratings for video / audio / image / text stimuli and setting up simple questionnaires, but is easy to customise towards other uses too. Setting up experiments is really fast. Web-based user interface with simple formatting options and batch stimulus upload & questionnaire generation allows deploying studies in minutes. Data are stored centrally and accessible. Onni is a Flask app using MariaDB.

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