Interactive JSON Visualization in React: react-json-pretty vs react-json-tree vs react-json-view

When building developer tools, admin interfaces, or debugging utilities, displaying JSON in a readable, structured way is essential. These three React packages solve that problem — but with very different trade-offs in terms of features, maintenance, and use cases. Let’s compare them head-to-head.

⚠️ Maintenance Status: One Is Officially Deprecated

react-json-pretty is deprecated. According to its npm page, it shows the notice: "This package has been deprecated. Use react-json-tree instead." The GitHub repository is archived, and there have been no updates in years. Do not use it in new projects.

react-json-tree and react-json-view are both actively maintained as of 2024, with recent releases and responsive issue tracking.

🛑 If you’re currently using react-json-pretty, migrate to one of the other two immediately.

🎨 Customization: Render Props vs Built-in Styling

react-json-tree gives you full control via render props. You can customize how keys, values, and labels appear by passing functions.

// react-json-tree: Custom key and value rendering
import JSONTree from 'react-json-tree';

<JSONTree
  data={myData}
  theme={{
    scheme: 'monokai',
    base00: '#272822',
    base0B: '#A6E22E'
  }}
  hideRoot={true}
  keyRenderer={(rawKey, keyPath) => <strong>{rawKey}</strong>}
  valueRenderer={(rawValue, valuePath) => {
    if (typeof rawValue === 'string') {
      return <em>{rawValue}</em>;
    }
    return rawValue;
  }}
/>

react-json-view uses a theme prop with predefined styles (like rjv-default, apathy, monokai) but doesn’t expose render props. You can override CSS variables or pass a custom theme object, but you can’t inject JSX into individual nodes.

// react-json-view: Theme-based styling
import ReactJson from 'react-json-view';

<ReactJson
  src={myData}
  theme="monokai"
  style={{ backgroundColor: '#272822' }}
  collapsed={2} // collapse after 2 levels
/>

react-json-pretty (deprecated) only supported basic syntax highlighting with limited theming:

// react-json-pretty (DO NOT USE)
import JsonPretty from 'react-json-pretty';

<JsonPretty id="json" data={myData} />

✏️ Interactivity: View-Only vs Editable JSON

This is the biggest functional difference.

react-json-tree is view-only. Users can expand/collapse nodes, but cannot edit values.

// react-json-tree: No editing possible
<JSONTree data={config} shouldExpandNode={() => false} />

react-json-view is fully editable by default. Users can:

• Double-click values to edit them
• Add new properties with the + button
• Delete keys with the trash icon
• Reorder arrays

You can disable editing globally or per-node:

// react-json-view: Enable/disable editing
<ReactJson
  src={userConfig}
  onEdit={({ updated_src }) => saveConfig(updated_src)}
  onDelete={({ updated_src }) => saveConfig(updated_src)}
  onAdd={({ updated_src }) => saveConfig(updated_src)}
  enableClipboard={false}
  displayObjectSize={false}
/>

react-json-pretty offered no interactivity beyond collapsible sections — and again, it’s deprecated.

🧩 Data Handling and Validation

react-json-view includes real-time validation during editing. If a user enters invalid JSON (e.g., typing { without closing), it shows a red border and prevents saving until fixed. It also enforces type safety — you can’t turn a string into a boolean unless you explicitly delete and retype.

react-json-tree assumes your data is already valid and makes no attempt to validate or correct it. It renders whatever you pass as data.

Both accept plain JavaScript objects — no need to stringify first.

// Both accept JS objects directly
const data = { name: "Alice", active: true, tags: ["dev", "ui"] };

// react-json-tree
<JSONTree data={data} />

// react-json-view
<ReactJson src={data} />

🖥️ Collapsing Behavior and Performance

All three support collapsing nested objects/arrays, but configuration differs.

react-json-tree uses shouldExpandNode for programmatic control:

<JSONTree
  data={largeData}
  shouldExpandNode={(keyName, data, level) => level < 2}
/>

react-json-view uses collapsed (number of levels to collapse initially):

<ReactJson src={largeData} collapsed={3} />

For large datasets (>10k nodes), react-json-tree tends to perform better because it doesn’t carry the overhead of editing logic. react-json-view’s interactivity comes at a cost — virtualization isn’t built in, so huge JSON blobs may cause lag.

🔌 Event Handling

react-json-view provides detailed callbacks for every user action:

<ReactJson
  src={data}
  onEdit={e => console.log('Edited:', e.updated_path, e.new_value)}
  onAdd={e => console.log('Added:', e.namespace, e.new_value)}
  onDelete={e => console.log('Deleted:', e.namespace)}
  onCopy={e => console.log('Copied:', e.src)}
/>

react-json-tree only supports click handlers on labels or values via render props — no built-in edit/add/delete events.

📦 When to Use Which

✅ Use react-json-tree if:

• You need a lightweight, read-only JSON viewer
• You require custom rendering (e.g., linking keys to docs, adding badges)
• You’re building a design system or developer console where consistency matters
• Performance with large data is critical

✅ Use react-json-view if:

• You need an interactive JSON editor
• Your users must modify configurations in-app (e.g., CMS settings, feature flags)
• You want built-in validation and undo/redo (via external state management)
• Clipboard support and object size indicators are useful

🚫 Never use react-json-pretty — it’s deprecated.

💡 Pro Tips

• For read-only + theming: react-json-tree with a custom theme object gives you pixel-perfect control.
• For editing + validation: react-json-view saves weeks of building your own JSON editor.
• Avoid editing in production logs: If you’re displaying server responses or logs, stick with react-json-tree — you don’t want users accidentally mutating debug data.
• Bundle impact: react-json-view is larger due to its feature set. If you only need viewing, react-json-tree is leaner.

🆚 Summary Table

🔚 Final Recommendation

If you just need to display JSON nicely — go with react-json-tree. It’s fast, flexible, and battle-tested.

If you need users to edit JSON in the browser — reach for react-json-view. Its rich interaction model is hard to replicate.

And whatever you do — leave react-json-pretty in the past.