JSONView for chrome

  • In-browser viewer
  • Expand and contract JSON items
  • Format validation
  • Doesn't require .json ending

Enable:

Chrome wrench button >> Tools >> Extensions >> "Allow access to file URLs"

Answer from carl crott on Stack Exchange
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Medium
medium.com › @ecastille924 › super-helpful-chrome-extension-for-json-data-f8a735c96bf4
Super Helpful Chrome Extension for JSON data | by Erick Castille | Medium
February 12, 2022 - It doesn’t at all look like readable, ... like the first example above. Good news! All you have to do is download the JSONView chrome extension available here....
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GitHub
github.com › tulios › json-viewer
GitHub - tulios/json-viewer: It is a Chrome extension for printing JSON and JSONP. · GitHub
When this happen just recheck the ... ... Hot word json-viewer into omnibox (type json-viewer + TAB and paste your JSON into omnibox, hit ENTER and it will be highlighted)...
Author   tulios
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Softonic
en.softonic.com › articles › how-to-use-json-viewer-chrome
How to use the JSON Viewer Chrome Extension in 3 steps - Softonic
July 2, 2025 - Navigate away from the download page to verify your extension is working. If your icon still doesn’t appear, check that JSON Viewer is pinned to your extension bar by clicking on the jigsaw icon and selecting the pin next to JSON Viewer in the add-on list.
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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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JSONLint
jsonlint.com › json-formatter
JSON Formatter For Chrome | JSONLint
Turn tedious JSON data into a visually intuitive, interactive experience with our JSON Formatter. Featuring color-coded formatting, image previews, clickable URLs, and easy navigation.
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Chrome Web Store
chromewebstore.google.com › detail › json-viewer › aimiinbnnkboelefkjlenlgimcabobli
JSON Viewer - Chrome Web Store
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.
Find elsewhere
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Ful.io
ful.io › blog › 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 - Input custom JSON directly into the extension. Import local files for visualization. Download JSON files conveniently using the context menu. Apply URL filters for focused analysis.
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Chrome Web Store
chromewebstore.google.com › detail › jsonview › gmegofmjomhknnokphhckolhcffdaihd
JSONView - Chrome Web Store
Even if the JSON document contains errors, JSONView will still show the raw text. Once you've got JSONView installed, check out http://jsonview.com/example.json to see the extension in action!
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Reddit
reddit.com › r/webdev › chrome extension json viewer
r/webdev on Reddit: Chrome extension JSON viewer
February 19, 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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GitHub
github.com › tulios › json-viewer › issues › 20
How do I use Json Viewer in Chrome · Issue #20 · tulios/json-viewer
May 1, 2014 - You must be signed in to change notification settings · Fork 723 · Star 3.4k · New issueCopy link · New issueCopy link · Closed · Closed · How do I use Json Viewer in Chrome#20 · Copy link · msletten · opened · on Jun 26, 2014 · Issue body actions · I installed the extension, but I can't figure out anywhere how to actually view the JSON from a url.
Published   Jun 26, 2014
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Herotofu
herotofu.com › extensions › json-viewer
View nicely formatted and highlighted JSON files. No special permissions required. No ads. No tracking. | HeroTofu
Copy-paste JSON documents to quickly format them. Automatically fixes common errors. Like trailing commas, missing quotes, etc. Dark and light modes. Choose the one that suits you best. No special permissions. For such a simple task, you shouldn't have to give up your privacy. Memory efficient. It doesn't run in the background when you don't need it. HeroTofu consists of both free and paid products. If you like the extension, please consider supporting the project by checking out the forms backend solution.
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Softonic
json-viewer.en.softonic.com › home › web browsers › browsers › google chrome › json viewer
JSON Viewer for Google Chrome - Extension Download
September 25, 2023 - JSON Viewer allows you to view, format, and print your JSON and JSONP files quickly. To use this plugin, first install it, then open your JSON file in Chrome. You will see an icon in the address bar.
Rating: 9.2/10 ​ - ​ 1 votes
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Chrome Web Store
chromewebstore.google.com › detail › json-viewer-pro › eifflpmocdbdmepbjaopkkhbfmdgijcc
JSON Viewer Pro - Chrome Web Store
Core features: ✅ Beautify JSON response from API ✅ Visual representation of JSON with Chart ✅ Depth traversing of JSON property using breadcrumbs ✅ Access or Traverse via JSON Path navigation Prompt ✅ Write custom JSON in Input area ✅ Configurable Content-Type and JSON Content Detection ✅ Ignore particular websites or URLs from rendering ✅ Import local JSON, YAML and XML files supported ✅ Download JSON file using Context Menu ✅ Dark and Light theme supported ✅ Custom CSS supported ✅ Intuitive User Interface ✅ Copy path of any property and value easily ✅ Access JSON
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GitHub
github.com › teocci › JSONViewer-for-Chrome
GitHub - teocci/JSONViewer-for-Chrome: Validates and makes JSON documents easy to read. · GitHub
JSONViewer-for-Chrome is a Chrome extension for printing JSON nicely when you visit it 'directly' in a browser tab. This allows you to a view JSON string in a tree format. Also, you can open/close sections for better visibility.
Author   teocci