JSON Master: Preview & Diff

High-performance JSON parser, virtualized tree viewer, and fast structural diff tool. Handles massive data without freezing.

As of June 2026, JSON Master: Preview & Diff has 7 users in the Developer Tools category.

Usersup 600.0 percent+600.0%
7
7
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.0.0
Manifest V3

History

6 snapshots

Tracking since Apr 1, 2026.

7.4840.5199999999999996Apr 1, 2026Jun 7, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 202611.0.0
Apr 17, 202611.0.0
May 13, 202661.0.0
May 25, 202671.0.0
May 31, 202661.0.0
Jun 7, 202651.0.0
Now71.0.0

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

JSON Master: Preview & Diff screenshot 1JSON Master: Preview & Diff screenshot 2JSON Master: Preview & Diff screenshot 3

About

JSON Master is a powerful, high-performance developer tool designed for parsing, viewing, formatting, and comparing JSON data effortlessly. Built specifically for developers, data analysts, and QA engineers who work with massive JSON payloads that often freeze or crash standard browser viewers.

🔥 Key Features:
- ⚡️ High-Performance Parsing: Easily handles large JSON files (MBs of data) without freezing your browser.
- 🌳 Virtualized Tree Viewer: Navigate deeply nested JSON structures smoothly with our optimized virtualized rendering.
- 🔍 Fast Structural Diff: Compare two JSON payloads side-by-side to quickly spot additions, deletions, and modifications.
- 🎨 Syntax Highlighting & Formatting: Beautiful, readable JSON with intuitive color coding.
- 📋 Copy & Export: Quickly copy JSON paths, keys, values, or the entire formatted JSON.
- 🌙 Dark/Light Mode Support: Comfortable viewing in any environment.

💡 Why install JSON Master?
Working with large API responses or complex configurations can be a nightmare if your tools can't handle the load. JSON Master solves the performance bottleneck, allowing you to instantly preview, analyze, and diff massive JSON data right in your browser. Say goodbye to tab crashes and laggy scrolling!

Technical

Version
1.0.0
Manifest
V3
Size
1.02MiB
Min Chrome
88
Languages
2
Featured
No

Metadata

ID
gpgopcnjfljgahcjgiohbojiifbmcadi
Developer ID
ud33f216eddb69e539282541fd0839a31
Developer Email
[email protected]
Created
Mar 23, 2026
Last Updated (Store)
Mar 23, 2026
Last Scraped
Jun 7, 2026
Website
Privacy Policy

Data sourced from the Chrome Web Store · last verified Jun 7, 2026.