Just JSON Viewer

Name: Just JSON Viewer
Rating: 5 (3 reviews)
Author: HeroTofu

View nicely formatted and highlighted JSON files. No special permissions. No signup. No ads. No tracking.

As of May 2026, Just JSON Viewer has 473 users and a 5.00/5 rating from 3 reviews in the Developer Tools category.

HeroTofu Developer Tools

Chrome Web Store ↗.crx

Users+18.5%

473

Rating0%

5.00

3 reviews

Reviews0%

Version

1.0.3

Manifest V3

History

3 snapshots

Tracking since Apr 1, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 1, 2026	399	5.00	3	1.0.3
Apr 30, 2026	423	5.00	3	1.0.3
May 27, 2026	459	5.00	3	1.0.3
Now	473	5.00	3	1.0.3

Permissions & access

Permissions: activeTabcontextMenusscripting
Host access: None declared

Screenshots

About

The "Just JSON Viewer" browser extension is a simple, privacy-friendly way to view JSON files in a nicely formatted and highlighted output. Here are some features that make it stand out:

- View JSON responses. Nicely formatted and highlighted output making it easy to read.
- Format JSON documents. Copy-paste JSON code to quickly format it.
- Automatically fixes common errors. Like trailing commas, missing quotes, etc.
- No special permissions required. You can trust that your information is secure as our extension does not need any permissions to run.
- No 3rd party trackers or ads. We value your privacy and ensure that the extension does not contain third-party trackers or ads that may compromise your data.
- Memory-efficient. The extension only runs when you click the icon, so it won't slow down your device with unnecessary background processes.
- Dark mode. Choose between the light and dark modes.

What's the catch / why it's free?

This extension is created by HeroTofu.com, we have both free and paid products. Our paid products help pay for the cost of creating and maintaining the free ones, like the "Just JSON Viewer" extension.

This means we can give you the extension for free, without any hidden costs.