Boost Your JSON Workflow with JSON Hero: A Powerful Viewer & Editor

JSON Hero is a simple, practical JSON tool that makes reading and understanding JSON documents easier through a clean UI and extra features.

It supports multiple viewing modes such as column view, tree view, and raw JSON view. The column view is inspired by macOS Finder, providing a novel way to browse JSON data.

1 Local Installation (Optional)

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

2 Direct Use

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

Content Preview

JSON Hero automatically infers the content of strings and provides useful previews and properties for selected values.

Date and Time

Image URL

Website URL

JSON URL

Tree View

The tree view is the most commonly used; it clearly displays hierarchical JSON structures.

It also supports searching within JSON data.

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

Overall, JSON Hero supports various views for JSON data, integrates with extensions like VS Code, and is a powerful tool for anyone who frequently works with JSON.