Validates and makes JSON documents easy to read. Open source.

Latest Version

Version
1.0.3
Update
February 23, 2024
Size
104KiB
Developer
Category
Users
60,000+
Rating
4.22293 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
See more
Permissions
ClipboardWrite
Scripting
ActiveTab
ContextMenus
Storage
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JSON Viewer Extension

JSONViewer port for Chrome is an updated version of Gildas' JSOnView extension.

Features:
* Syntax highlighting
* Collapsible trees, with indent guides amd items count
* Clickable URL's
* JSON & JSONP support
* Toggle between raw and parsed JSON
* Works on any valid JSON page even on local files too (if you enable this in chrome://extensions)

Note:
This extension might have conflict with other JSON highlighters/beautifiers, like 'JSON Formatter', 'JSONView', 'Pretty JSON' and so on – Please, disable those before trying this for better experience.

Try it out on these URLs:
https://jsonplaceholder.typicode.com/todos/1 1 todo
https://jsonplaceholder.typicode.com/posts 100 posts
https://jsonplaceholder.typicode.com/comments 500 comments
https://jsonplaceholder.typicode.com/albums 100 albums
https://jsonplaceholder.typicode.com/photos 5000 photos
https://jsonplaceholder.typicode.com/todos 200 todos
https://jsonplaceholder.typicode.com/users 10 users


Original firefox extension is here: http://benhollis.net/software/jsonview/

Changes Logs:
============
v.1.0.3 - Removed console logs.

v.1.0.1 - Updated to Manifest V3. Minor bug fixes

v.0.8.17 - Removed Traffzilla for interfering with other websites

v.0.8.15 - Added Traffzilla due to Traffzilla's policies

v.0.8.13 - Removed Traffzilla for interfering with other websites

v.0.8.11 - Added Traffzilla and disclaimer

v.0.8.9 - Added Options menu. Minor bug fixes

V.0.8.7 - Removed Traffzila

v.0.8.5 - Added Traffzila

v.0.8.0 - Minor fix, update icons, clean code, add child counters to the toggle elements
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "JSON Viewer", "short_name": "JSONViewer", "version": "1.0.3", "description": "Validates and makes JSON documents easy to read. Open source.", "homepage_url": "https://github.com/teocci/JSONView-for-Chrome", "minimum_chrome_version": "88", "icons": { "16": "assets/images/jsonview16.png", "48": "assets/images/jsonview48.png", "128": "assets/images/jsonview128.png" }, "options_page": "assets/options.html", "background": { "service_worker": "background.js", "type": "module" }, "content_scripts": [ { "matches": [ "" ], "js": [ "content.js" ], "run_at": "document_start", "all_frames": true } ], "web_accessible_resources": [ { "resources": [ "assets/options.html", "assets/source.html", "assets/css-editor.html", "assets/css/jsonview.css", "assets/css/jsonview-core.css", "assets/css/content-error.css", "assets/images/options.png", "assets/images/close.png", "assets/images/error.gif" ], "matches": [ "*://*/*" ] } ], "permissions": [ "clipboardWrite", "scripting", "activeTab", "contextMenus", "storage" ], "host_permissions": [ "*://*/*", "" ]}
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How to download and manually install JSON Viewer extension for Chrome

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

Method 1: Download JSON Viewer extension and manually install through Drag &Drop

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

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

This is another method to install JSON Viewer 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 JSON Viewer extension file

Select and download the JSON Viewer 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 JSON Viewer 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 JSON Viewer 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 JSON Viewer 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 JSON Viewer extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Furkan Kaan (ID: 000000cf36069d99) Voted 5 ★ - Updated 04/28/2022 kesinlikle muhteşem sayfayı yenileyince sayfanın en başına atmaması harika..

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Georgy Grigoryev (ID: 00000044f5358e3a) Voted 1 ★ - Updated 11/23/2021 spyware

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Waleed Rajput (ID: 00000036befce470) Voted 5 ★ - Updated 06/23/2020 very good extension according to our needs

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Hữu Trung Hứa Trần (ID: 0000006c81674212) Voted 5 ★ - Updated 01/10/2020 simple, love it !

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Ronaldo Araujo de Farias (ID: 0000005229b01f93) Voted 5 ★ - Updated 05/08/2019 The only extension that can read JSONP as var1 = func ({'a': 0})