JSON Formatter
Developer Tools
Makes JSON easy to read
Users
2M
Rating
4.3
Reviews
2,085
7D Growth
0|0%
Stable signalNo paid features detectedHigh-risk permissions
JSON Lite
Fast JSON viewer - highlights, shows items count/size, handles large files
Users20KCurrent public install base
Rating4.8Store average score
Reviews61Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
4 assetsJSON Lite Media preview
Trend
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7-day rating change
Start
4.75
Latest
4.75
7-day rating change
0.00
2026年7月15日2026年7月21日
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1-day growthFlat
00%7-day growthFlat
00%30-day growthFlat
00%Technical snapshot
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Version24.6.3
ManifestV3
Size23.65KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
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Features:
- Format JSON/JSONP responses and clipboard
- Select and format/encode/decode text on every page
- Collapsible arrays, objects and long values
- Collapse all childs with Ctrl(Command) + Click
- Collapse property also on all sibling items with Alt(Option) + Click
Reviews
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Store average score4.8Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.8Average computed only from synced review bodies below
Reviews with text39Synced review bodies
Total ratings / reviews61Chrome Web Store public rating/review count
Store average score: 4.8. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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--|--
Light and fast, gets the job done. Would be nice to have a fold-all option for complex JSON files so that you can start to unfold it from the top.
This is the best Json viewer I have come across. I like the "unescape string" feature very much, it helps to read newline formatted long debug info strings.
I've been looking for this extension for a few years. I've used other JSON viewers/formatters and they've all been incredibly slow especially when hiding/revealing branches. I deal with large JSON datasets at my job and this plugin is easily the quickest of all that I have tried. Great job!
The automatic unix timestamp to date display is very helpful.
Please add response status : 200, 400, 500,....
Best JSON formatter for chrome.
LARGE JSON FILES - This extension covers them with no hick-up at all!!! Using this more than a year on day to day basis - This is your JSON viewer for Chrome :)
Just Works fast and light. Do not forget to enable "allow access to file urls". It gives summary stat, and opens large files when other json viewers fail.
This is the best JSON viewer I've found so far, in terms of efficiency as well as DX/UX. Unlike other JSON viewers, this extension manages to allocate memory only when it's really needed. 👍 It even supports *.geojson files
Fast! Thank you very much!