HTML5 Outliner

HTML5 Outliner is a Chrome extension developed by Dominykas Blyžė. According to the data from Chrome web store, current version of HTML5 Outliner is 0.8.14, updated on 2020-06-04.
80,000+ users have installed this extension. 252 users have rated this extension with an average rating of .

Generates a navigable page outline with heading and sectioning elements

This extension is using the HTML5 outline algorithm to create a table of contents.
Should also work well with HTML4 (and older?) pages, that have structured headings.
The table of contents is clickable and tries to highlight the heading/section in question after the jump.

The extension should prove useful to people who find themselves often using online HTML5 outliners.

Comments, bug reports and suggestions much appreciated!

Extension source code: https://github.com/h5o/h5o-chrome
Outliner source code: https://github.com/h5o/h5o-js