OnlineExamMaker support add image to questions. At the question add or editing page:
In this panel, there are three objects, the first is a named URL input box, and following the second object, the insert button. If you have got a online image, then you may paste the image URL to the URL input box, and click the INSERT button to insert your image to the editor.
Else if you don’t have an online image, you can upload it to the OnlineExamMaker server, click the Upload Image button, the browser will promote a select image file dialog box
Select the image you want to add to the editor, and wait to upload to the server, your image will automatically add to the editor
You can continue to add image to your question, not only the question content, but also the options and any field have a editor available.