JSON Viewer
Validates and makes JSON documents easy to read. Open source.
What is JSON Viewer?
JSON Viewer is a Chrome extension designed to improve the readability and validation of JSON documents directly in the browser. It features syntax highlighting, collapsible trees with guides and counts, clickable URLs, and supports both JSON and JSONP formats. Users can easily toggle between raw and parsed JSON views, even for local files if permitted in Chrome settings. Its open-source nature allows for continuous improvement and community involvement.
Extension stats
By: teocci
Users: 60,000+ 
Rating: 4.22
(157)
Creation date: 2019-01-29
Manifest version: 3
Permissions:
- clipboardWrite
- scripting
- activeTab
- contextMenus
- storage
Host permissions:
- *://*/*
- <all_urls>
Size: 106.50K
Email: te*****@yandex.com
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Extension summary
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
See moreUser reviews
These summaries are automatically generated weekly using AI based on recent user reviews.
Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate,
spammy, or outdated. Pros
- simple and easy to use
- very good extension according to user needs
- works well with JSONP
- shows item count and allows copying path and value
- works even if content type isn't application/json
Cons
- can be detected as spyware
- text selection issue with collapsing
- HTML tags in data values cause display issues
- jumps to the top on page refresh
Most mentioned
- very good extension according to our needs
- simple, love it!
- works very nice
- kesinlikle muhteşem sayfayı yenileyince sayfanın en başına atmaması harika..
Recent reviews
not good enough
by 
Liam, 2024-06-13
Liam, 2024-06-13want to click to select text but it collapse
by 
Hoang Nguyen Quy, 2024-03-11
Hoang Nguyen Quy, 2024-03-11Stopped working. Possibly detected as a spyware
by 
R’vns, 2023-12-05
R’vns, 2023-12-05Extension safety
Risk impact
JSON Viewer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
JSON Viewer has earned a fairly good reputation and likely can be trusted.
Upgrade to see risk analysis details
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