JSON Hero: A Simple and Powerful JSON Viewer and Editor

JSON Hero is a simple yet powerful JSON utility that offers an attractive UI and enhanced features to make reading and understanding JSON documents easier and more intuitive.

It supports multiple views for inspecting JSON, including column view (inspired by macOS Finder), tree view, and raw JSON view.

Installation

To run JSON Hero locally, clone the repository and install the dependencies:

git clone https://github.com/jsonhero-io/jsonhero-web.git
cd jsonhero-web
npm install

Then start the application with:

npm start

Open http://localhost:8787 in a browser to use the tool.

Usage

Visit https://jsonhero.io/ , drag a JSON file onto the site, or paste JSON or a JSON URL into the provided form.

JSON Hero automatically infers the content of strings and provides useful previews and properties for selected values, such as dates, image URLs, website URLs, JSON URLs, and more.

The tree view offers a clear hierarchical display of JSON data, and the tool also supports searching within JSON data.

Key point!

After editing or reviewing data, you can generate a shareable link instead of copying the entire dataset, which is convenient for front‑end developers.

Overall, JSON Hero supports various ways to view JSON data, integrates with VS Code extensions, and is a handy tool for anyone who frequently works with JSON.