Web Component DevTools
Developer Tools
Developer tooling for Web Components and Web Component Libraries
Users
8K
Rating
4.3
Reviews
9
7D Growth
0|0%
Growth signalNo paid features detectedLow-risk permissions
Immutable.js devtools extension
Makes Immutable JS objects more readable when they are logged to the console.
Users151Current public install base
Rating5.0Store average score
Reviews1Public review volume
Manifest versionV3Extension platform version
7-day growth+10Net users gained this week
7-day growth rate+7.09%Relative weekly velocity
Preview
1 assetsImmutable.js devtools extension Media preview
Trend
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7-day rating change
Start
5.00
Latest
5.00
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 growthGrowing
+10+7.09%30-day growthFlat
00%Technical snapshot
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Version2.1.7
ManifestV3
Size45.12KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview
Product summary
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The Immutable library is fantastic, but inspecting immutable collections in browser's Dev Tools is awkward. You only see the internal data structure, not the logical contents. For example, when inspecting the contents of an Immutable List, you'd really like to see the items in the list.
Chrome (v47+) and Firefox (116+) has support for custom "formatters". A formatter tells browser's Dev Tools how to display values in the Console, Scope list, etc. This means we can display Lists, Maps and other collections, in a much better way.
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Store average score5.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average5.0Average computed only from synced review bodies below
Reviews with text1Synced review bodies
Total ratings / reviews1Chrome Web Store public rating/review count
Store average score: 5.0. 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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Works perfectly! Thank you.