Display JWT bearer tokens in a new tab in Chrome's Developer Tools

Latest Version

Version
1.8
Update
May 20, 2024
Size
20.19KiB
Developer
Category
Users
10,000+
Rating
4.66667 ★
Manifest Version
3
Web Store Status
Languages Support
English
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Permissions
Storage
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JWT Inspector Extension

Are you sending JWT tokens in your HTTP requests? Tired of copying tokens from the developer view into jwt.io when debugging?
This extension will detect HTTP(S) requests with an Authorization header containing a JWT bearer token, and conveniently display the contents of the token in Chrome's developer tools pane.

New: Wrapping of long claim names can be enabled in options. Default behaviour changed to less wrapping less aggressive.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "JWT Inspector", "short_name": "JWT", "version": "1.8", "description": "Display JWT bearer tokens in a new tab in Chrome's Developer Tools", "author": "Tore Green", "icons": { "128": "icon128.png", "48": "icon48.png" }, "homepage_url": "https://bugjam.github.io/jwt-inspector/", "devtools_page": "devtools.html", "options_ui": { "page": "options.html", "open_in_tab": false }, "permissions": [ "storage" ], "incognito": "split", "manifest_version": 3 }
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How to download and manually install JWT Inspector extension for Chrome

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

Method 1: Download JWT Inspector extension and manually install through Drag &Drop

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

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

This is another method to install JWT Inspector 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 JWT Inspector extension file

Select and download the JWT Inspector 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 JWT Inspector 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 JWT Inspector 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 JWT Inspector 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 JWT Inspector extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Akshdeep Nebraska (ID: 0000009a5417b7ed) Voted 5 ★ - Updated 10/04/2023 Great one ! Does what it needs to ! Simple !

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Luis Bascur (ID: 0000008beee1a867) Voted 5 ★ - Updated 06/20/2023 I love it! I'm always extracting token from the environment I'm currently working and it's so much useful getting it by just a click! The only improve I expect it's the desgin but I'll keep using it as it is.

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Slava Fesenko (ID: 0000008905420246) Voted 4 ★ - Updated 02/04/2021 Thanks Tore, great idea and realization, but when working with Swagger it's not only token needed, but "Bearer " before it. Of course, not a big deal to add it manually when pasting, but it takes almost the same time as simple grabbing token from headers. Suggestion It'd be nice to add setting like a checkbox "Insert 'Bearer ' string before token when copying to a clipboard".

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Liam Hughes (ID: 0000008b4868e63a) Voted 4 ★ - Updated 07/24/2020 Seems to do a good job nice and simply. Not easy to read in Dark theme but the copy to clipboard button is useful