JSON Tools icon

JSON Tools

by ronmini@gmail.com · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Select JSON text from any webpage and prettify it with a right-click context menu

Users
26
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#137K
#114K among extensions
Version
1.0.4
updated 13 Jun 2026

Users

monthly, 13 months
01326Sep 2025Apr 2026Oct 2026
Latest, 16 Oct 2026: 26 usersMove the mouse over the chart for any month

Ratings count

monthly, 13 months
023Sep 2025Apr 2026Oct 2026
Latest, 16 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About JSON Tools

JSON Tools helps developers instantly format, validate, and navigate JSON data. Easily prettify, validate, and explore JSON in split or tree view. One-click context menu or popup with syntax highlighting. Whether you’re debugging APIs, working with configs, or just cleaning up JSON, this extension makes it effortless with a split-view editor, syntax highlighting, and real-time validation. 🚀 Key Features Right-Click Prettify – Select JSON text on any webpage and prettify instantly Split View – Compare original JSON (left) with formatted output (right) Tree View Mode – Explore JSON in a collapsible tree with paths on hover Validation – Catch errors instantly with clear syntax feedback Syntax Highlighting – Color-coded keys, values, and data types Statistics – See character, line, and key counts at a glance Keyboard Shortcuts – Speed up formatting with quick commands - Ctrl + c + c + c - to automatically prettify the JSON 🛠 How It Works Select the json text right-click JSON text on any webpage → choose "Prettify JSON" Or, click the extension icon → paste JSON into the editor Or. Click Ctrl + c + c +c (3 time in a row ) to Prettify Switch between code view and tree view, validate instantly, and copy results 🎯 Perfect For Developers working with REST APIs, GraphQL, and configs QA engineers debugging JSON responses Students learning JSON syntax and structure

Growth

WindowUsersChangeRatingsRating
7 days+4+18.2%00.00
30 days−1−3.7%00.00
6 months+17+188.9%+20.00
1 year+22+550.0%+20.00

Version history

5 versions recorded
1.0.413 Jun 2026
1.0.38 Oct 2025
1.0.22 Oct 2025
1.0.11 Oct 2025
1.029 Sep 2025

Details

Category
Developer Tools
First seen
29 Sep 2025
Size
30 KB
Languages
en
Pricing
Free
Extension ID
njpkjaimmngbfdibceoiklohoapedhcd

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
contextMenusactiveTabstorage

Alternatives to JSON Tools

Extensions that rank for the same store searches or share the Developer Tools category, ordered by users