Makes JSON easy to read. Open source.

Latest Version

Version
0.7.3
Update
March 28, 2024
Size
19.86KiB
Developer
callumlocke.com
Category
Users
2,000,000+
Rating
4.58687 ★
Manifest Version
3
Web Store Status
Languages Support
English
See more
Permissions
Storage
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JSON Formatter Extension

The original JSON Formatter, now with optional dark mode 🌚

Auto-formats JSON when you load it in a browser tab.

FEATURES

- Fast, even on very long JSON pages
- Dark mode
- Syntax highlighting
- Collapsible trees, with indent guides
- Clickable URLs
- Negligible performance impact on non-JSON pages (less than 1 millisecond)
- Works on any valid JSON page – URL doesn't matter
- Buttons for toggling between raw and parsed JSON

Note: this extension might clash with other browser extensions that modify the DOM before it runs. If it doesn't seem to be working, try disabling other extensions. If it clashes with an extension you need, open an issue and I'll try to find a solution.

SOME EXAMPLE JSON PAGES to try it out on:
https://callumlocke.github.io/json-formatter/

PRO TIP
Hold down control (or cmd on Mac) while collapsing a tree - collapses all siblings too.

PRIVACY
No tracking, no advertising, and nothing else nefarious.

SOURCE CODE
github.com/callumlocke/json-formatter

ISSUES
github.com/callumlocke/json-formatter/issues

WHO MADE THIS
twitter.com/callumlocke
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "JSON Formatter", "version": "0.7.3", "manifest_version": 3, "description": "Makes JSON easy to read. Open source.", "homepage_url": "https://github.com/callumlocke/json-formatter", "minimum_chrome_version": "88", "icons": { "128": "icons/128.png", "32": "icons/32.png" }, "content_scripts": [ { "matches": [""], "js": ["content.js"], "run_at": "document_end" } ], "permissions": ["storage"], "host_permissions": ["*://*/*", ""], "options_ui": { "page": "options/options.html", "open_in_tab": false }}
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How to download and manually install JSON Formatter extension for Chrome

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

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

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

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

This is another method to install JSON Formatter 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 Formatter extension file

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

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User reviews

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Rachel Howell (ID: 000000ba675ad4a0) Voted 5 ★ - Updated 10/10/2023 So good at formatting my JSONs.

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Gabriel (ID: 000000d0ad8edf02) Voted 1 ★ - Updated 10/08/2023 it does work good when it works. But there is some seriously bad logic on detecting wheter page is json or not, if there is a pre tag that kinda looks like json, it pretty much corrupts a regular html page that has nothing to do with json! The fix is easy, if you dont want to respect the content type tag (which is a form of standard and should be respected, or create a setting for it) then it should not scan page for all

 elements but instead check if there is ONLY 1 pre element then consider it, its bad because if a complete html page is perfectly valid and there is a small pre tag in the end of html, it will take that tag and rearrange the html making regular non json pages display incorrectly
                                            

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Noelle Nielson (ID: 000000991b4f94cb) Voted 5 ★ - Updated 10/06/2023 This is amazing! So much easier than copying and pasting into an online formatter. I didn't realize this was a thing until just barely and it works flawlessly. Makes life so much easier!

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Carlos Lopez Alvarado (ID: 0000008f518dd3e8) Voted 5 ★ - Updated 09/25/2023 justo lo que buscaba, es muy útil, gracias

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Prince Ani (ID: 0000005572482e93) Voted 5 ★ - Updated 09/06/2023 Perfect. Makes my work so much easier.