Workflow & Planning
Stable signalUnknownMedium-risk permissions
HTML5 Outliner icon

HTML5 Outliner

Generates a navigable page outline with heading and sectioning elements

Users90KCurrent public install base
Rating4.2Store average score
Reviews261Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

HTML5 Outliner Media preview

1 assets
Trend

User growth trend

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User Growth Over Time

90K90K90K90K90K2026年7月16日2026年7月19日2026年7月22日Latest: 90K
Rating trend

7-day rating trend

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7-day rating change

Start
4.24
Latest
4.24
7-day rating change
0.00
4.144.194.244.294.342026年7月16日2026年7月19日2026年7月22日Latest: 4.24
2026年7月16日2026年7月22日
Growth overview

Daily, weekly, and monthly growth

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1-day growthFlat
00%
7-day growthFlat
00%
30-day growthFlat
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Technical snapshot

Version, languages, and crawl freshness

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Version0.9.0
ManifestV3
Size25.23KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

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

Reviews

Recent review snapshot

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Store average score4.2Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.9Average computed only from synced review bodies below
Reviews with text84Synced review bodies
Total ratings / reviews261Chrome Web Store public rating/review count

Store average score: 4.2. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★
45
4★
16
3★
7
2★
4
1★
12
Huahua Zhong2017年7月21日
5

If replaced with new UI, that would be perfect!

Language en
Webmaster2017年6月25日
5

Супер!

Language mk
1 helpful · 0 not helpful
Sandro Miguel Marques2017年6月14日
5

Love it

Language en
Gersivan Oliveira2017年6月13日
4

Produtiva e útil.

Language pt
1 helpful · 1 not helpful
Vikrant Singh2017年5月31日
5

For the people having trouble with this, make sure to restart chrome. Also, this extension, apparently, only works on live webpages. So it won't work on websites you coded and are not running on a server. Try to run your webpage on a local server like lamp/wamp, maybe with npm, etc. and then try using the extension. :)

Language en
14 helpful · 0 not helpful
Jan Broos2017年4月18日
1

Did not work. like other users.

Language en
1 helpful · 0 not helpful
Công dân toàn cầu2017年1月9日
4

It doesn't have a hotkey

Language en
Molly Pfaff2016年12月27日
1

The icon doesn't appear in my search/url bar.

Language en
1 helpful · 0 not helpful
Jiří Thiemel2016年12月22日
2

WARNING: There are currently no known implementations of the outline algorithm in graphical browsers or assistive technology user agents, although the algorithm is implemented in other software such as conformance checkers. Therefore the outline algorithm cannot be relied upon to convey document structure to users. Authors are advised to use heading rank (h1-h6) to convey document structure. https://www.w3.org/TR/html5/sections.html#outline

Language en
3 helpful · 0 not helpful
Gareth Smith2016年11月17日
1

Did not work, even after restarting Chromium - clicking the button just brings you here (as mentioned by others).

Language en
4 helpful · 1 not helpful
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