All activity
SingleFile helps you to save a complete page (with CSS, images, etc.) into a single HTML file.
It allows to save multiple tabs in one click, auto-save tabs, or save a part of the page. It has unique features like embedding images that are not yet loaded without needing to scroll. It can also remove unused CSS and HTML from the saved page.
SingleFile
WebExtension for saving a web page into a single HTML file
JSONView for Chrome
easiest way to view JSON in Chrome