Willow.js - JSON Tree Viewer

by marcelopaciulli@gmail.com · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

An interactive JSON tree viewer with expand/collapse navigation, undo/redo support, and customizable visualization options.

Users

0 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#315K

#251K among extensions

Version

1.0.0

updated 3 Jun 2026

Users

monthly, 4 months

Latest, 15 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months

Latest, 15 Oct 2026: 0 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 Willow.js - JSON Tree Viewer

Willow.js is a powerful interactive JSON tree viewer designed for developers. It allows you to visualize complex JSON structures with expandable and collapsible nodes, search functionality, undo/redo navigation, and customizable themes and fonts. Perfect for debugging APIs, inspecting payloads, and exploring large JSON datasets in a clean and intuitive interface.