NetWedit: JavaScript WYSIWYG HTML editor [Mark up] button to open a Markup window, which shows how your text will appear in a browser. You can format the text by selecting regions in the Markup window and clicking on the buttons underneath the text box. Changes will be reflected immediately: you will see HTML code inserted automatically in the respective text box and clicking on the Markup window will update the resulting display. (The Text box shows the HTML Source view). with javascriptonlinesimplewysiwygéditeur