JSON Viewer

Name: JSON Viewer
Rating: 4.83 (18 reviews)
Author: SoftRoyals

Most aesthetic & customizable JSON/JSONP viewer with themes, custom search, syntax highlighting/checking & copy features.

As of May 2026, JSON Viewer has 6,000 users and a 4.83/5 rating from 18 reviews in the Developer Tools category.

SoftRoyals Developer Tools

Chrome Web Store ↗.crx

Users+20.0%

6.0K

6,000

Rating+1.3%

4.83

18 reviews

Reviews+38.5%

Version

1.0.1

Manifest V3

90-day change · In the last 90 days this extension gained 1.0K users.

History

3 snapshots

Tracking since Apr 21, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 21, 2026	5.0K	4.77	13	1.0.1
May 6, 2026	4.0K	4.81	16	1.0.1
May 31, 2026	5.0K	4.81	16	1.0.1
Now	6.0K	4.83	18	1.0.1

Permissions & access

Permissions: activeTabstorage
Host access: <all_urls>

Screenshots

About

🧩 JSON Viewer – The Ultimate JSON & JSONP Formatter for Chrome

Beautiful, blazing-fast, and fully customizable.
Visualize and format JSON like never before with 27 themes, collapsible nodes, raw/highlight toggles, and advanced editing options – all in one lightweight Chrome extension.

🔥 Why Choose JSON Viewer?
Make raw JSON readable, searchable, and stunningly presented. Whether you’re a developer, data analyst, or API tester – this is the must-have tool in your browser.

✅ Auto Detects JSON/JSONP – No need to rely on URL or headers

🎨 27 Gorgeous Built-in Themes – Choose what suits your eyes

🧩 Fully Customizable – Colors, tab size, formatting limits, line numbers, and more

📎 Collapsible Nodes – Navigate complex objects with ease

🔍 Clickable URLs & Omnibox Support – Type json + TAB to paste and preview JSON instantly

📁 Works with Local Files – Just enable permissions in the Extensions page

🔄 Scratchpad Mode – Type, paste, and format JSON in a standalone editor

🧠 Handles Big Numbers – Even beyond Number.MAX_VALUE

📊 Sort by Keys + Editable JSON – Tweak and analyze live data

⏱️ Header Options – Add timestamp and source URL to your previews

🧩 C-style Braces Option – Prefer C-style arrays? Enable it in one click

⚙️ Quick Tips
💡 Enable Incognito and Local File Access in chrome://extensions for full functionality

🛠️ Conflicts with other JSON formatters? Disable the others for best results

🔁 After updates, Chrome may reset permissions—simply recheck the access boxes if needed

🌐 Perfect for:
REST API developers

Web app testers

Front-end and back-end engineers

Anyone working with structured data in the browser

📥 Install now to transform the way you view JSON in Chrome!