Developer & Data Tools • Free Online Tool

JSON Viewer

View, format, and validate JSON data instantly within an interactive visual tree.

Free to Use No Sign-Up Browser-Based
Online Tool

JSON Viewer

Ready
JSON Input

Paste or type your JSON data

Structure Tree

Hierarchical data visualization

Paste or type JSON data to instantly validate its syntax and explore nested tree structures. The visualisation features automatic formatting, code highlighting, and error detection natively.
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