ExtSpot
JSON Viewer icon

JSON Viewer Chrome Extension Analysis

Developer & Designer Tools

Chrome extension ID: efknglbfhoddmmfabeihlemgekhhnabb

A utility that parses and formats JSON files opened in the browser to make them human-readable. It provides an interactive interface with syntax highlighting and expandable/collapsible objects and arrays.

Developer:Rongjian Zhang
Version:2.2.0
Size:140KiB
Last updated:
View developer profile
External:Chrome Web StoreOfficial website

Overview

Installs

30K+

Rating

★ 4.7

50 reviews

Languages

1 locales

Includes English

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Developer & Designer Tools

Pricing friction

Low review signal

Complaint intensity

Moderate review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The product positions itself as a direct port of the native Firefox JSON Viewer for the Chrome browser. It emphasizes simplicity, syntax highlighting, and the ability to easily navigate JSON structures via collapsible icons.

Inferred product pattern

Open-source feature port designed to replicate a native browser capability in a competing browser.

Review-backed pain points

Users report the extension sometimes fails to trigger on valid .json files or incorrectly overrides an entire webpage because it detected hidden JSON data.

Observed feature gaps

Missing MIME type verification to prevent incorrect page overrides; users have requested a JSON data path/address indicator for selected lines.

Tags
JSON FormatterDeveloper ToolSyntax HighlightingAPI DebuggingJSON Viewer
Target users

- Web Developers

- API Engineers

- Data Analysts

- Firefox users migrating to Chrome

Primary use cases

- Debugging API responses

- Inspecting large JSON data files

- Viewing structured data with syntax highlighting

Positive themes

- Faithful replication of Firefox functionality

- Efficient handling of large payloads

- Useful utility features like Save, Copy, and Search

- Clean UI with light and dark theme support

Negative themes

- Intermittent failure to detect JSON files

- Over-aggressive activation on non-JSON webpages

- Reports of missing UI functions after updates

Observed friction

- No pricing friction observed; the tool is presented as a free open-source utility.

Evidence boundary: Analysis based on store listing and a sample of 10 user reviews covering both high and low ratings. Review data is based on a small sample relative to the total number of comments.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

Limited evidence of developer responsiveness to bug reports.

Reliability

Some reliability issues regarding when the viewer triggers and consistency of the UI features.

Privacy

No privacy or security complaints found in the provided samples.

Access & pricing

- Free usage observed

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 1

- Videos: 0

- Languages: 1

Trust signals

- Developer contact

- Official website

Store metadata

- Version: 2.2.0

- Size: 140KiB

- Last updated:

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

JSON viewer chromeformat JSON in browserJSON syntax highlighter

Comparison

Firefox JSON viewer chrome alternativebest JSON viewer extension

Problem

how to view JSON in chromeJSON file not formatting in browser

Alternative

JSON Viewer alternativeChrome JSON formatter

Similar extensions

Jump to related discovery paths:

More in developerMore from this developer

Screenshots

JSON Viewer screenshot

Links

Website: github.com

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