Accessibility testing tool from TPGi
ARC Toolkit Extension
The toolkit is designed to be integrated into automated and manual accessibility tests and works alongside the auditor or developer in order to simplify repetitive tasks and interactively explore accessibility features and problems. The ARC Toolkit is tightly integrated with Chrome’s Developer Tools and uses the ARC rule set, the same rules used by default in the ARC platform. This allows developers and quality assurance testers to take their ARC testing into their development environments and thoroughly investigate issues raised in ARC scans.
Launched from the Developer Tools, the ARC Toolkit panel includes a set of tests that shows results both in the panel and in the page itself. Each test can be toggled on and off so types of issues can be isolated. Issues can be selected and viewed directly in the Elements panel.
It runs completely local within Chrome and works within iframes, so it can evaluate any page you can browse to. If you would like to pages that are not live on a website but are in development, turn on the option to \"Allow access to file URLs\".
Because this tool is actively used by the TPGi team, there are frequent updates as we further develop and refine the rules and features. If you would like training on how to use ARC Toolkit for testing, please contact TPGi at https://www.tpgi.com/contact/.
This extension is governed by the license agreement at https://www.tpgi.com/arc-toolkit-the-service-terms-of-service/.
Source Manifest.json
"update_url": "https://clients2.google.com/service/update2/crx",
"name":"ARC Toolkit",
"version":"5.7.6",
"manifest_version":3,
"description":"Accessibility testing tool from TPGi",
"homepage_url":"https://www.tpgi.com/arc-platform/arc-toolkit/",
"icons":{"16":"icon/16.png",
"48":"icon/48.png",
"128":"icon/128.png"},
"permissions":["scripting",
"webNavigation",
"storage",
"clipboardWrite"],
"host_permissions":["
"background":{"service_worker":"background/main.js"},
"action":{"default_icon":{"16":"icon/16.png",
"48":"icon/48.png",
"128":"icon/128.png"},
"default_popup":"popup/index.html",
"default_title":"ARC Toolkit"},
"content_scripts":[{"all_frames":true,
"matches":["
"js":["libs/helpers.js",
"libs/utils.js",
"leader-line.min.js"],
"css":["libs/helpers.css"],
"run_at":"document_start"}],
"devtools_page":"devtools/index.html"}
How to download and manually install ARC Toolkit extension for Chrome
Looking for a way to install ARC Toolkit 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 ARC Toolkit extensions manually, this article outlines two simple methods to effortlessly install ARC Toolkit extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.
Method 1: Download ARC Toolkit extension and manually install through Drag &Drop
If you ever need to manually install a ARC Toolkit 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 ARC Toolkit Extension by clicking the "Download CRX" button on the website.
Look for the ARC Toolkit extension you wish to install. Go to the website and download the ARC Toolkit extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for ARC Toolkit 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 ARC Toolkit 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 ARC Toolkit extension for Chrome and install in Developer Mode
This is another method to install ARC Toolkit 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 ARC Toolkit extension file
Select and download the ARC Toolkit 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 ARC Toolkit 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 ARC Toolkit 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 ARC Toolkit 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 ARC Toolkit extension in 2 ways. We hope this guide proves helpful.
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