Just JSON Viewer
Developer Tools
View nicely formatted and highlighted JSON files. No special permissions. No signup. No ads. No tracking.
Users
505
Rating
5.0
Reviews
3
7D Growth
+14|2.85%
Cooling signalNo paid features detectedMedium-risk permissions
JSONViewer
Format several JSON documents in one window, depends to your screen width, up to 6
Users9KCurrent public install base
Rating4.7Store average score
Reviews15Public review volume
Manifest versionV3Extension platform version
7-day growth-1KNet users gained this week
7-day growth rate-10%Relative weekly velocity
Preview
1 assetsJSONViewer Media preview
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Start
4.73
Latest
4.73
7-day rating change
0.00
2026年7月16日2026年7月22日
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1-day growthFlat
00%7-day growthDeclining
-1K-10%30-day growthDeclining
-1K-10%Technical snapshot
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Version2.2.0
ManifestV3
Size565KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
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Now is available for Firefox, Microsoft Edge and 360 Browser(from China), for more details, Please visit: https://github.com/oppoic/JSONViewer
Reviews
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Store average score4.7Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.7Average computed only from synced review bodies below
Reviews with text12Synced review bodies
Total ratings / reviews15Chrome Web Store public rating/review count
Store average score: 4.7. 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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很好用
macOS 15.7，chrome 143.0.7499.40 ，扩展坞外接鼠标上下滚动无效，触摸板是正常的
求开发着大大 赶紧支持 转义啊。 带转义的或者字符串转义的，没法格式化
Best json editor tool
大数据精度缺失
This is a great tool, but I encountered a problem while using it and hope to improve it: When I need to count the number of elements in an array, it cannot help me
简洁 好用
多个JSON同时格式化是最棒的设计，但有个严重的BUG，如果字段是数值并且是long类型（C#），将会丢失数值，在其他JSON工具上尝试未出现类似问题。
that's good.
完美