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Medium
medium.com โ€บ @ecastille924 โ€บ super-helpful-chrome-extension-for-json-data-f8a735c96bf4
Super Helpful Chrome Extension for JSON data | by Erick Castille | Medium
February 12, 2022 - Lately, Iโ€™ve been working a lot with JSON data from APIs to build practice projects for my own practice. One thing I realized that I had been taking for granted was a super helpful Chrome extension that makes viewing/ understanding JSON data way easier: JSONView.
Discussions

Chrome extension JSON viewer
I'm interested in contributing to the project! do you have a public repo? More on reddit.com
๐ŸŒ r/webdev
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February 11, 2024
I built a Chrome extension to format & compare JSON โ€” works offline and respects your privacy
Hey everyone ๐Ÿ‘‹ Iโ€™ve recently built a Chrome extension called Just JSON โ€” itโ€™s a small dev tool that helps format and compare JSON quickly, right inโ€ฆ More on reddit.com
๐ŸŒ r/chrome_extensions
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June 22, 2025
How to view JSON in Chrome like Firefox?
If you need only a nice viewer/parser I can recommend good ol JSON Formatter , really handy addon which also gives you easy access to elements with json in console. There is also a newer fork of it with some color themes and visual features, but because of it loading bigger JSON files can take much longer (or even crash the tab). More on reddit.com
๐ŸŒ r/webdev
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December 31, 2019
6 useful Google Chrome extensions that improve my coding workflow
You forgot this one More on reddit.com
๐ŸŒ r/learnprogramming
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May 18, 2022
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Ful.io
ful.io โ€บ blog โ€บ top-5-json-viewer-chrome-extensions-you-need-to-check-out
Top 5 JSON Viewer Chrome Extensions You Need To Check Out
May 20, 2025 - This Chrome extension is a powerful tool designed for developers, offering convenient printing capabilities directly within the browser. ... Highlight Syntax: Easily identify JSON syntax elements for improved readability.
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Jsonview
jsonview.com
JSONView - View JSON in Firefox and Chrome | BenHollis.net
A Firefox and Chrome extension that pretty-prints JSON data.
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InMotion Hosting
inmotionhosting.com โ€บ blog โ€บ 5-must-have-browser-extensions
Top 5 Must-have Chrome Extensions for Developers and Designers
January 23, 2024 - JSON is important, you can use it to pull out key data from websitesโ€”usually via an API.
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Reddit
reddit.com โ€บ r/webdev โ€บ chrome extension json viewer
r/webdev on Reddit: Chrome extension JSON viewer
February 11, 2024 -

In case anyone else is needing a way to view large JSON files (10MB+), I wrote this extension for Chrome:

https://chromewebstore.google.com/detail/json-navigator/glgilclfmgofaeffphalkglkgbbpmigf

It loads large JSON files faster than Chrome can generate the preformatted text (by a long shot), and has a lot of useful features that make finding the needles in the haystack easier.

Enjoy :)

Live demo: https://r55man.com/json-navigator/

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Js
json-formatter.js.org
JSON Formatter - Beautify Your JSON Code in the Browser
A Chrome Extension to automatically format JSON in the browser. Available with both Dark and Light mode, with Auto-Linker and Syntax Highlighting.
Rating: 4.3 โ€‹ - โ€‹ 19 votes
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JSONLint
jsonlint.com โ€บ json-formatter
JSON Formatter For Chrome | JSONLint
๐Ÿ”— Clickable URLs: Found a link within your JSON? It's now instantly clickable! No more copy-pasting. This streamlines your workflow and saves you time. โณ Human-Readable Timestamps: No more puzzling over cryptic timestamps. Our extension now converts them into a format that's easy to understand.
Find elsewhere
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Reddit
reddit.com โ€บ r/chrome_extensions โ€บ i built a chrome extension to format & compare json โ€” works offline and respects your privacy
r/chrome_extensions on Reddit: I built a Chrome extension to format & compare JSON โ€” works offline and respects your privacy
June 22, 2025 - โœ… Formats raw JSON with one click โš–๏ธ Compares two JSON files side-by-side with highlighted differences ๐ŸŒ™ Supports dark mode ๐Ÿ“‹ Lets you copy or download formatted JSON ๐Ÿ” Works completely offline โ€” no tracking, no analytics, no data collection ยท Would love to hear your thoughts or feedback ๐Ÿ™Œ What would make this more useful for you? Thanks for checking it out! ... A community dedicated to all things web development: both front-end and back-end. For more design-related questions, try /r/web_design. ... Learn, share, build, and discuss Chrome extensions in this awesome place.
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Chrome Web Store
chromewebstore.google.com โ€บ detail โ€บ json-viewer โ€บ aimiinbnnkboelefkjlenlgimcabobli
JSON Viewer - Chrome Web Store
Makes JSON easy to read. Open source. ... Average rating 4.7 out of 5 stars. Learn more about results and reviews. A completely free extension to visualise JSON response in awesome Tree and Chart view with great user experience and options.
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Product Hunt
producthunt.com โ€บ products โ€บ json hero chrome extension โ€บ alternatives
Best JSON Hero Chrome extension alternatives (2026) | Product Hunt
January 20, 2026 - And since JSON Hero is open source, you can even point to your own instance. ... browser extension(37)browser extensions(17)open source(16)notes & documents(7)chrome extension(45)developer tools(47)design tools(16)productivity(59)color ...
Rating: 4.5 โ€‹ - โ€‹ 2 votes
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Chrome Web Store
chromewebstore.google.com โ€บ detail โ€บ json-viewer-pro โ€บ eifflpmocdbdmepbjaopkkhbfmdgijcc
JSON Viewer Pro - Chrome Web Store
A completely free extension to visualise JSON response in awesome Tree and Chart view with great user experience and options. It has lot of unique features which makes it a must have JSON formatter for beginner to advance users. โœ… Completely Free and no advertisements. Core features: โœ… Beautify JSON response from API โœ… Visual representation of JSON with Chart โœ… Depth traversing of JSON property using breadcrumbs โœ… Access or Traverse via JSON Path navigation Prompt โœ… Write custom JSON in Input area โœ… Configurable Content-Type and JSON Content Detection โœ… Ignore particular websit
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GitHub
github.com โ€บ rbrahul โ€บ Awesome-JSON-Viewer
GitHub - rbrahul/Awesome-JSON-Viewer: :fire: A Chrome extension to visualise JSON response and introduce awesome JSON prettifying experiences. ยท GitHub
:fire: A Chrome extension to visualise JSON response and introduce awesome JSON prettifying experiences. - rbrahul/Awesome-JSON-Viewer
Starred by 582 users
Forked by 109 users
Languages ย  JavaScript 65.2% | CSS 16.7% | HTML 10.9% | SCSS 6.0%
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Web Carpenter
webcarpenter.com โ€บ blog โ€บ 124-JSON-Formatter-Chrome-Plugin-Extension
JSON Formatter Chrome Plugin Extension // Web Carpenter
This is the best JSON Formatter I have found. It makes JSON easy to read, and it is open source. โ€ข JSON & JSONP support โ€ข Syntax highlighting โ€ข Collapsible trees, with indent guides โ€ข Clickable URLs โ€ข Toggle between raw and parsed JSON โ€ข Works on any valid JSON page โ€“ URL doesn't matter โ€ข Works on local files too (if you enable this in chrome://extensions) โ€ข You can inspect the JSON by typing "json" in the console
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DEV Community
dev.to โ€บ rezmoss โ€บ json-viewer-plus-the-last-json-extension-youll-ever-need-4mab
JSON Viewer Plus: The Last JSON Extension You'll Ever Need - DEV Community
November 20, 2024 - Chrome Web Store ยท Microsoft Edge Add-ons ยท As the developer, I'm committed to making JSON Viewer Plus even better. The extension is regularly updated based on user feedback and emerging needs.
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GitHub
github.com โ€บ tulios โ€บ json-viewer
GitHub - tulios/json-viewer: It is a Chrome extension for printing JSON and JSONP. ยท GitHub
The most beautiful and customizable JSON/JSONP highlighter that your eyes have ever seen. It is a Chrome extension for printing JSON and JSONP.
Starred by 3.5K users
Forked by 726 users
Languages ย  HTML 42.2% | JavaScript 31.2% | CSS 14.4% | SCSS 12.2%
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DEV Community
dev.to โ€บ amanjagdev โ€บ best-chrome-extensions-you-should-have-as-a-web-developer-53pf
Best Chrome Extensions you should have as a web developer - DEV Community
May 7, 2021 - This extension allows you to directly download files and sub-directories of a GitHub repository as zip, without having to clone or download the whole project. ... This helps you to inspect your React components and their state inside the Chrome dev tools. It can be accessed in the new tabs in Chrome Dev Tools "โš›๏ธComponents" and "โš›๏ธ Profilerโ€œ, which will be added after installation. ... It helps you to beautify & format JSON with Syntax highlighting which makes it easier to read.
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freeCodeCamp
freecodecamp.org โ€บ news โ€บ untitleeasy-to-read-json-with-this-chrome-firefox-extensiond
How to get easy-to-read JSON trees with this free Chrome Extension (or Firefox Plugin)
September 10, 2024 - Sometimes we may have a JSON object inside a browser tab that we need to read and this can be difficult. We may need to go and search for an online tool that turns it into an easy-to-read format so we can understand it. Now, here is a Chrome and Firefox extension that does the formatting and ...
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Chrome Web Store
chromewebstore.google.com โ€บ detail โ€บ jsonview โ€บ gmegofmjomhknnokphhckolhcffdaihd
JSONView - Chrome Web Store
A completely free extension to visualise JSON response in awesome Tree and Chart view with great user experience and options. Itโ€ฆ ... Average rating 4.2 out of 5 stars. Learn more about results and reviews. Validates and makes JSON documents easy to read. Open source. ... Average rating 4.0 out of 5 stars. Learn more about results and reviews. Adds React debugging tools to the Chrome Developer Tools.