JSON Visualization and Editing in React Applications
jsoneditor, react-json-editor-ajrm, react-json-tree, react-json-view, and react-jsonschema-form are npm packages that help developers display, edit, or validate JSON data in web applications. While they all deal with JSON, their purposes differ significantly: some focus on read-only tree views, others on rich editing experiences, and one specializes in rendering forms from JSON Schema definitions. Understanding their capabilities is essential when choosing the right tool for debugging interfaces, configuration panels, data entry forms, or developer-facing UIs.
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Choosing the Right JSON Tool for Your React App
When you need to work with JSON in a React application — whether displaying config data, letting users edit settings, or building dynamic forms — picking the right library can save weeks of effort. The five packages under review solve related but distinct problems. Let’s cut through the noise and compare them based on real engineering needs.
🧾 Core Purpose: What Problem Does Each Solve?
jsoneditor
A standalone JSON editor originally built for vanilla JS, now usable in React via wrapper patterns. Supports two modes: a visual tree editor (with add/remove/edit) and a text/code editor (with Ace integration). Includes JSON Schema validation and full undo history.
// jsoneditor in React (requires ref and manual setup)
import { useRef, useEffect } from 'react';
import JSONEditor from 'jsoneditor';
import 'jsoneditor/dist/jsoneditor.css';
function JsonEditorWrapper({ data, onChange }) {
const containerRef = useRef(null);
const editorRef = useRef(null);
useEffect(() => {
if (containerRef.current) {
editorRef.current = new JSONEditor(containerRef.current, {
mode: 'tree',
onChange: () => {
try {
const updated = editorRef.current.get();
onChange(updated);
} catch (e) { /* handle parse errors */ }
}
}, data);
}
return () => editorRef.current?.destroy();
}, []);
return <div ref={containerRef} style={{ height: '500px' }} />;
}
react-json-editor-ajrm
A React-native JSON editor that parses JSON into colored, editable tokens. Designed for inline editing with minimal dependencies. Lacks tree navigation or schema support.
// react-json-editor-ajrm
import JSONInput from 'react-json-editor-ajrm';
import 'react-json-editor-ajrm/locale/en';
function Editor({ value, onChange }) {
return (
<JSONInput
id='json'
placeholder={value}
colors={{
default: '#333',
string: '#c33',
number: '#33c',
key: '#3c3'
}}
onChange={({ jsObject }) => onChange(jsObject)}
/>
);
}
react-json-tree
A read-only JSON tree viewer. Renders nested objects as collapsible nodes. Commonly used in developer tools. No editing, no copying — just clean visualization.
// react-json-tree
import JSONTree from 'react-json-tree';
function Viewer({ data }) {
return (
<JSONTree
data={data}
theme={{
scheme: 'monokai',
author: 'wimer hazenberg',
base00: '#272822'
}}
hideRoot={true}
invertTheme={true}
/>
);
}
react-json-view
An editable JSON tree with user actions: click to edit values, right-click to add/delete nodes, and copy paths/values. Built specifically for React.
// react-json-view
import ReactJson from 'react-json-view';
function EditableViewer({ src, onEdit, onDelete, onAdd }) {
return (
<ReactJson
src={src}
onEdit={onEdit}
onDelete={onDelete}
onAdd={onAdd}
theme="monokai"
iconStyle="triangle"
name={false}
/>
);
}
react-jsonschema-form
A form generator that turns a JSON Schema + UI Schema into actual HTML form fields (inputs, selects, etc.). Handles validation, error messages, and data binding automatically.
// react-jsonschema-form
import Form from '@rjsf/core';
const schema = {
type: 'object',
properties: {
name: { type: 'string' },
age: { type: 'number', minimum: 0 }
}
};
function DynamicForm({ formData, onSubmit }) {
return (
<Form
schema={schema}
formData={formData}
onSubmit={({ formData }) => onSubmit(formData)}
/>
);
}
🔍 Editing Capabilities: Can Users Modify Data?
| Package | Edit Values | Add/Delete Nodes | Raw Code Mode | Undo/Redo |
|---|---|---|---|---|
jsoneditor | ✅ | ✅ | ✅ (Ace-based) | ✅ |
react-json-editor-ajrm | ✅ (token-level) | ❌ | ❌ | ❌ |
react-json-tree | ❌ | ❌ | ❌ | ❌ |
react-json-view | ✅ | ✅ | ❌ | ❌ |
react-jsonschema-form | ✅ (via form fields) | ✅ (for arrays/objects) | ❌ | ❌ |
- Need raw JSON editing? Only
jsoneditoroffers a true code editor alongside tree mode. - Need simple inline edits?
react-json-editor-ajrmandreact-json-viewallow value changes but differ in UX: token-based vs tree-based. - Building a form?
react-jsonschema-formis the only one that abstracts JSON into standard form controls.
📐 Validation and Schema Support
Only two libraries support JSON Schema:
jsoneditor: Validates against a provided schema in both tree and code modes. Shows red underlines and error tooltips.
// jsoneditor with schema
const options = {
schema: {
type: 'object',
properties: { name: { type: 'string' } }
}
};
react-jsonschema-form: Uses schema to generate fields and validate on change/submit. Errors appear inline.
// react-jsonschema-form auto-validates
const schema = { /* JSON Schema */ };
// No extra code needed — validation is built-in
The others (react-json-editor-ajrm, react-json-tree, react-json-view) perform only basic JSON parsing validation (i.e., “is this valid JSON?”) but cannot enforce structural rules.
⚙️ React Integration Experience
jsoneditor: Not React-native. You must manage the DOM ref, lifecycle, and data sync manually. Risk of memory leaks if not cleaned up properly.react-json-editor-ajrm,react-json-tree,react-json-view,react-jsonschema-form: All are true React components with props-based APIs. They re-render predictably and integrate cleanly with state management.
If you’re in a strict React architecture (e.g., using hooks, avoiding refs), avoid jsoneditor unless you wrap it carefully.
🎨 Customization and Theming
react-json-treeandreact-json-viewoffer deep theming via CSS-in-JS or predefined themes.jsoneditoruses classic CSS overrides; theming is possible but less flexible.react-jsonschema-formallows complete widget replacement (e.g., swap<input>for a custom date picker).react-json-editor-ajrmsupports limited color customization via props.
🚫 Maintenance and Deprecation Status
As of 2024:
react-json-editor-ajrmshows signs of low maintenance. Its GitHub repo has unresolved issues and no recent releases. Use cautiously in new projects.- The other four packages are actively maintained with recent commits and issue responses.
🧪 Real-World Decision Guide
Scenario 1: Debug Overlay for Developers
You’re building a Redux DevTools-like panel to inspect app state.
- ✅ Best choice:
react-json-tree - Why? Read-only, fast, collapsible, and lightweight. No need for editing.
Scenario 2: Admin Panel for Editing App Config
Users must modify nested JSON settings (e.g., feature flags, UI layouts).
- ✅ Best choice:
react-json-view - Why? Editable tree with intuitive add/delete/edit. No schema needed.
Scenario 3: Content Management System with Structured Data
Editors fill out forms defined by content models (e.g., “Blog Post” = title + body + tags).
- ✅ Best choice:
react-jsonschema-form - Why? Generates forms from schemas, validates input, and outputs clean JSON.
Scenario 4: API Tester / Playground
Users paste raw JSON, switch between tree/code views, and validate against a spec.
- ✅ Best choice:
jsoneditor - Why? Only library offering dual modes + schema validation + undo.
Scenario 5: Simple Inline JSON Editor in a Form
A small widget where users tweak a JSON snippet without complex navigation.
- ⚠️ Consider:
react-json-editor-ajrm— but verify compatibility and test thoroughly due to maintenance concerns. Alternatively, usereact-json-viewin a compact layout.
💡 Final Recommendation
Ask yourself these questions:
- Do I need users to write raw JSON? →
jsoneditor - Am I building a form from a schema? →
react-jsonschema-form - Is this read-only debugging UI? →
react-json-tree - Do I need an editable tree without raw code? →
react-json-view - Do I need a tiny inline editor and accept maintenance risk? →
react-json-editor-ajrm
Don’t force one tool to do everything. These libraries excel in their niches — pick the one that matches your actual use case.
How to Choose: jsoneditor vs react-json-editor-ajrm vs react-json-tree vs react-json-view vs react-jsonschema-form
- jsoneditor:
Choose
jsoneditorif you need a full-featured, standalone JSON editor with support for both tree and code modes, schema validation, and undo/redo. It’s ideal for admin panels or developer tools where users must deeply interact with raw or structured JSON. Note that it’s not React-native—it requires a DOM ref and manual integration into React components. - react-json-editor-ajrm:
Choose
react-json-editor-ajrmif you want a lightweight, React-native JSON editor that supports syntax-aware editing with color-coded tokens and basic validation. It’s suitable for simple inline editors where you don’t need schema enforcement or advanced features like mode switching, but be aware it hasn’t seen active maintenance recently. - react-json-tree:
Choose
react-json-treeif your primary goal is to display JSON in an expandable, read-only tree structure—commonly used in debug overlays, Redux dev tools, or logging UIs. It offers excellent customization of styling and labels but provides no editing capabilities. - react-json-view:
Choose
react-json-viewif you need an editable, interactive JSON tree with copy-to-clipboard, add/delete/edit actions, and theming. It’s well-suited for configuration editors or developer dashboards where users tweak nested objects without writing raw JSON. Avoid it if you require strict schema validation or code-mode editing. - react-jsonschema-form:
Choose
react-jsonschema-formif you’re building data entry forms driven by JSON Schema and UI Schema definitions. It automatically generates form fields, handles validation, and manages state—perfect for dynamic form builders, CMS backends, or API-driven UIs. Don’t use it for general JSON viewing or editing outside a form context.
Popular Comparisons
README for jsoneditor
JSON Editor
JSON Editor is a web-based tool to view, edit, format, and validate JSON. It has various modes such as a tree editor, a code editor, and a plain text editor. The editor can be used as a component in your own web application. It can be loaded as CommonJS module, AMD module, or as a regular javascript file.
The library was originally developed as core component of the popular web application https://jsoneditoronline.org and has been open sourced since then.
Supported browsers: Chrome, Firefox, Safari, Edge.
Continuous integration tests are run on GitHub Actions, and LambdaTest is used to test on all major browsers.
Thanks, GitHub Actions and LambdaTest for the generous support for this open source project!
Successor: svelte-jsoneditor
This library jsoneditor has a successor: svelte-jsoneditor. The new editor is not a one-to-one replacement, so there may be reasons to stick with jsoneditor.
The main differences between the two are described here.
Features
JSONEditor has various modes, with the following features.
Tree mode
- Change, add, move, remove, and duplicate fields and values.
- Sort arrays and objects.
- Transform JSON using JMESPath queries.
- Colorized code.
- Color picker.
- Search & highlight text in the tree view.
- Undo and redo all actions.
- JSON schema validation (powered by ajv).
Code mode
- Colorized code (powered by Ace).
- Inspect JSON (powered by Ace).
- Format and compact JSON.
- Repair JSON.
- JSON schema validation (powered by ajv).
Text mode
- Format and compact JSON.
- Repair JSON.
- JSON schema validation (powered by ajv).
Preview mode
- Handle large JSON documents up to 500 MiB.
- Transform JSON using JMESPath queries.
- Format and compact JSON.
- Repair JSON.
- JSON schema validation (powered by ajv).
Documentation
Install
with npm (recommended):
npm install jsoneditor
Alternatively, you can use another JavaScript package manager like https://yarnpkg.com/, or a CDN such as https://cdnjs.com/ or https://www.jsdelivr.com/.
Use
Note that in the following example, you'll have to change the urls
jsoneditor/dist/jsoneditor.min.jsandjsoneditor/dist/jsoneditor.min.cssto match the place where you've downloaded the library, or fill in the URL of the CDN you're using.
<!DOCTYPE HTML>
<html lang="en">
<head>
<!-- when using the mode "code", it's important to specify charset utf-8 -->
<meta charset="utf-8">
<link href="jsoneditor/dist/jsoneditor.min.css" rel="stylesheet" type="text/css">
<script src="jsoneditor/dist/jsoneditor.min.js"></script>
</head>
<body>
<div id="jsoneditor" style="width: 400px; height: 400px;"></div>
<script>
// create the editor
const container = document.getElementById("jsoneditor")
const options = {}
const editor = new JSONEditor(container, options)
// set json
const initialJson = {
"Array": [1, 2, 3],
"Boolean": true,
"Null": null,
"Number": 123,
"Object": {"a": "b", "c": "d"},
"String": "Hello World"
}
editor.set(initialJson)
// get json
const updatedJson = editor.get()
</script>
</body>
</html>
Build
The code of the JSON Editor is located in the folder ./src. To build
jsoneditor:
-
Install dependencies:
npm install -
Build JSON Editor:
npm run buildThis will generate the files
./jsoneditor.js,./jsoneditor.css, and
minified versions in the dist of the project. -
To automatically build when a source file has changed:
npm startThis will update
./jsoneditor.jsand./jsoneditor.cssin the dist folder on every change, but it will NOT update the minified versions as that's an expensive operation.
Test
Run unit tests:
npm test
Run code linting (JavaScript Standard Style):
npm run lint
License
jsoneditor is released as open source under the permissive the Apache 2.0 license.
If you are using jsoneditor commercially, there is a social (but no legal) expectation that you help fund its maintenance. Start here.