Highlights all the headings on a page to visually allow the user to see the heading hierarchy.

Latest Version

Version
1.0.1
Update
October 15, 2018
Size
13.7KiB
Developer
Category
Users
5,000+
Rating
3.4 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
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HTML Heading Highlighter Extension

A chrome extension that highlights all the headings (h1-h6) on the page. I made this to extension to help me quickly get a rough idea of the heading structure when carrying out accessibility audits. Each heading is given an outline with a specific colour. A key is also appended to the body which illustrates the mapping of colour to heading.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "HTML Heading Highlighter", "short_name": "Highlight Headings", "version": "1.0.1", "description": "Highlights all the headings on a page to visually allow the user to see the heading hierarchy.", "manifest_version": 2, "content_scripts": [ { "matches": [""], "js": ["content.js"] } ], "browser_action": { "default_popup": "popup.html", "default_icon": { "16": "assets/images/hh_16.png", "32": "assets/images/hh_32.png", "48": "assets/images/hh_48.png", "128": "assets/images/hh_128.png" } }, "icons": { "16": "assets/images/hh_16.png", "32": "assets/images/hh_32.png", "48": "assets/images/hh_48.png", "128": "assets/images/hh_128.png" }}
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How to download and manually install HTML Heading Highlighter extension for Chrome

Looking for a way to install HTML Heading Highlighter extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install HTML Heading Highlighter extensions manually, this article outlines two simple methods to effortlessly install HTML Heading Highlighter extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download HTML Heading Highlighter extension and manually install through Drag &Drop

If you ever need to manually install a HTML Heading Highlighter extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the HTML Heading Highlighter Extension by clicking the "Download CRX" button on the website.

Look for the HTML Heading Highlighter extension you wish to install. Go to the website and download the HTML Heading Highlighter extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for HTML Heading Highlighter extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the HTML Heading Highlighter extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download HTML Heading Highlighter extension for Chrome and install in Developer Mode

This is another method to install HTML Heading Highlighter extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the HTML Heading Highlighter extension file

Select and download the HTML Heading Highlighter extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the HTML Heading Highlighter extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your HTML Heading Highlighter extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the HTML Heading Highlighter extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install HTML Heading Highlighter extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Андрей Казаков (ID: 000000e4b63b98c5) Voted 5 ★ - Updated 09/11/2023 It's okay, it does work despite what other reviews say. It does its job, but a bit roughly: it creates an overlay on the page you're inspecting with a legend containing heading (a bit unpleasant and not-given-much-thought-to) colors that cannot be moved and it's fully opaque by default unless hovered. The huge plus (and therefore 5 stars) is that it works on SPA sites meanwhile some alternatives that highlight the headings much more elegant (I'd recommend the developer of this extension to learn from them), like "Website SEO Checker: Free Audit & Analysis", do not.

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C S (ID: 00000054620c8742) Voted 1 ★ - Updated 03/24/2023 Seems to not be maintained anymore--clicking the button doesn't do anything.

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Samuele gg (ID: 000000b00bfe818f) Voted 1 ★ - Updated 03/23/2022 Non funziona bene. It doesn't work well.

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Design Team (ID: 000000279c551147) Voted 5 ★ - Updated 08/16/2021 10/10

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Fernanda Morsch (ID: 0000009f00b25339) Voted 5 ★ - Updated 08/15/2019 Excellent! It's a great extension for those who are visual.