JSON Viewer+ is a browser extension that automatically formats and syntax-highlights JSON and JSONP content. As a Manifest V3-compliant fork of the original JSON Viewer, it provides a modernized toolset for developers to inspect and manipulate data directly within the browser.
Overview · Full Intel report in progress
The App DNA
What makes this app unique?
For Web developers and software engineers who frequently debug or inspect JSON API responses.
What does it look like?
Key features
Offers 27 built-in syntax highlighting themes and customizable CSS and tab sizes.
Includes collapsible nodes, line numbers, and search functionality to simplify the analysis of large JSON files.
Allows users to trigger formatting or open a scratch pad directly from the browser address bar.
Supports sorting keys alphabetically and correctly processes numbers exceeding Number.MAX_VALUE.
How much does it cost?
Velocity
Who built it?
KAI WANG
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What do users think recently?
How are ratings & reviews evolving?
Not enough recent reviews to extract reliable themes yet.
Read the full review analysisCompetition
Competitive landscape for JSON Viewer+
How's the Developer Tools market?
The rivals identified
The Analyst's Read
Key takeaways for JSON Viewer+
Where is it heading?
Bottom line
This is a privacy-focused, Manifest V3-updated utility designed to streamline JSON inspection for developers.
Report last updated