Press shift+g (or create your own key shortcut) to (de)activate grayscaling of a web page.

Latest Version

Version
2.0
Update
October 19, 2014
Size
4.44KiB
Developer
Category
Users
3,000+
Rating
2.54348 ★
Manifest Version
2
Web Store Status
Languages Support
English
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Permissions
Storage
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Grayscale Tool Extension

Originally intended for web designers who might want to test the contrast of their content by changing to grayscale, but this extension can really be used by anyone who for some reason want to remove the colors of a web page.

The grayscale persists between page loads, and the key shortcut to activate can be customized in the options.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "Grayscale Tool", "version": "2.0", "manifest_version": 2, "description": "Press shift+g (or create your own key shortcut) to (de)activate grayscaling of a web page.","options_page": "options.html", "permissions": ["storage"], "content_scripts": [ { "matches": [ "", "file:///*" ], "js": ["grayscale.js"], "run_at": "document_end" } ]}
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How to download and manually install Grayscale Tool extension for Chrome

Looking for a way to install Grayscale Tool 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 Grayscale Tool extensions manually, this article outlines two simple methods to effortlessly install Grayscale Tool extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Grayscale Tool extension and manually install through Drag &Drop

If you ever need to manually install a Grayscale Tool 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 Grayscale Tool Extension by clicking the "Download CRX" button on the website.

Look for the Grayscale Tool extension you wish to install. Go to the website and download the Grayscale Tool extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Grayscale Tool 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 Grayscale Tool 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 Grayscale Tool extension for Chrome and install in Developer Mode

This is another method to install Grayscale Tool 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 Grayscale Tool extension file

Select and download the Grayscale Tool 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 Grayscale Tool 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 Grayscale Tool 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 Grayscale Tool 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 Grayscale Tool extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Old “Laag” Starchy (ID: 000000529bd865a0) Voted 4 ★ - Updated 09/14/2023 Works well, I would prefer it to store on/off state per tab since I'll only need it for one or two tabs at a time but for my usage I only activate it briefly now and then so I don't need to worry much about opening/refreshing other tabs while its on. I'm using Alt+G as the shortcut as I already use Shift+G for something else.

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Brooklyn (ID: 00000025dce52567) Voted 1 ★ - Updated 02/08/2022 No matter what combination I used, it didn't work- was looking forward to this...

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Juri Novikov (ID: 000000aa241a89e5) Voted 4 ★ - Updated 08/30/2021 работает Shift+G при опции "на выбранных сайтах"

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Zach and Jadyn Stewart (ID: 0000004629f719ba) Voted 4 ★ - Updated 02/22/2021 The short cut didn't work at first but I had to refresh the tabs I had open before I installed the extension before the short cut started working.

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Blake Nelson (ID: 000000e645954289) Voted 5 ★ - Updated 08/13/2019 Works. If you're having issues, it's because you're trying to use it on a web page you had open before installing the extension. Try refreshing that page and then using the hotkey. :)