HTML5 Outliner

Generates a navigable page outline with heading and sectioning elements

As of June 2026, HTML5 Outliner has 90,000 users and a 4.24/5 rating from 261 reviews in the Workflow & Planning category.

Usersno change0%
90.0K
90,000
Ratingno change0%
4.24
261 reviews
Reviewsno change0%
261
Version
0.9.0
Manifest V3

History

1 snapshots

Tracking since May 3, 2026.

91.0K90.0K89.0KMay 3, 2026Jun 2, 2026
View as table
DateUsersRatingReviewsVersion
May 3, 202690.0K4.242610.9.0
Now90.0K4.242610.9.0

Permissions & access

Permissions
activeTab
Host access
None declared

Screenshots

HTML5 Outliner screenshot 1

About

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

Technical

Version
0.9.0
Manifest
V3
Size
25.23KiB
Min Chrome
88
Languages
1
Featured
Yes

Metadata

ID
afoibpobokebhgfnknfndkgemglggomo
Developer ID
ua90648aa4a88e35348ffffd61959961f
Developer Email
[email protected]
Created
Dec 19, 2009
Last Updated (Store)
May 31, 2024
Last Scraped
Jun 2, 2026
Website
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 2, 2026.