Json Viewer

Paste JSON to beautify it, pretty print it and explore it as a collapsible tree.

Artifact by uiwjs

IndexedOpen source★ 60Developer tools

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Opens uiwjs.github.io in a new tab. Nothing to install.

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You provide: JSON text
You get: Formatted JSON and a tree view
Account: Not stated
AI: No AI: a plain tool
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Open-source web app
Source: Open source
Link check: Answered on Oct 31, 2026

About

Json Viewer is an open-source web app in the developer tools category. It opens in your browser, so there is nothing to install. You provide JSON text and get formatted JSON and a tree view. It is a plain tool: no AI model is involved. The source code is public on GitHub (uiwjs/json-viewer).

Category: Developer tools

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Stars: 60

Details

License: Open source
Repository: github.com/uiwjs/json-viewer
Website: uiwjs.github.io/json-viewer
First seen: Oct 31, 2026
Last checked: Oct 31, 2026
Source: GitHub