JSON Editor
Professional online JSON editor with multi-view editing, real-time validation, format conversion, and data visualization. Supports bidirectional conversion between JSON and XML, YAML, CSV, object code to meet various data processing needs.
Core Features
Text Edit Mode
Code editor style with syntax highlighting and auto-completion
Tree View Mode
Hierarchical visualization with expand/collapse and interactive editing
Table Mode
Array data displayed in table format for easy comparison and analysis
Preview Mode
Read-only formatted display with data type identification
Why Choose Our JSON Editor?
This JSON editor is designed to enhance development efficiency. Whether you're doing API development, data analysis, or configuration file editing, it provides professional support. With multiple view modes, real-time syntax validation, intelligent search positioning, and rich format conversion features, JSON data processing becomes simple and efficient.
Multi-View Editing Experience
Provides text, tree, table, and preview modes to meet different scenarios for data viewing and editing.
Real-time Syntax Validation
Instantly detects JSON syntax errors during input, provides detailed error information and line positioning to ensure correct data format.
Intelligent Formatting
One-click beautification of messy JSON data or compression to compact format, supports custom indentation and line break settings.
Multi-format Conversion Support
Supports bidirectional conversion between JSON and XML, YAML, CSV, and multiple programming language object codes for one-stop data format processing.
Text Compare
Compare differences between two JSON texts side by side, with independent editing and one-click apply to the main editor.
User Guide
Detailed feature usage guide to help you quickly master various functions and usage tips of the JSON editor
Editing Mode Guide
Text Edit Mode
Text edit mode provides a code editor-like experience for direct JSON source code editing. Features syntax highlighting, auto-completion, bracket matching, and other professional functions, suitable for developers familiar with JSON syntax for precise editing. Supports keyboard shortcuts to improve editing efficiency.
- β’ Professional code editor experience
- β’ Syntax highlighting and intelligent hints
- β’ Real-time syntax validation and error prompts
- β’ Keyboard shortcuts and auto-formatting
Tree View Mode
Tree view displays JSON data in hierarchical structure, visualizing complex nested relationships. Supports node expand/collapse, drag sorting, in-place editing, and other interactive operations. Especially suitable for viewing and editing JSON data with deep nested structures, making data hierarchy clear at a glance.
- β’ Hierarchical structure visualization
- β’ Node expand/collapse control
- β’ Drag and in-place editing support
- β’ Complex nested data navigation
Table Mode
Table mode is designed for JSON array data, displaying object arrays in table format similar to Excel operation experience. Supports column sorting, data filtering, cell editing, and other functions. Can directly export to CSV format for further processing in spreadsheet software.
- β’ Excel-like table operation experience
- β’ Sorting, filtering, and editing support
- β’ One-click CSV format export
- β’ Suitable for structured array data
Preview Mode
Preview mode provides read-only formatted display with data type identification and syntax highlighting. Suitable for data presentation, code review, and documentation scenarios. Ensures data won't be accidentally modified while maintaining good readability and professional visual effects.
- β’ Read-only safe preview display
- β’ Data type visual identification
- β’ Professional syntax highlighting
- β’ Suitable for presentation and review scenarios
Format Conversion Features
Format Conversion Features
Supports bidirectional conversion between JSON and multiple data formats including XML, YAML, CSV, and programming language object codes. Each format has dedicated conversion panels with real-time preview, one-click copy, and file download. Automatically handles format differences and data type mapping during conversion.
- β’ XML format bidirectional conversion
- β’ YAML format bidirectional conversion
- β’ CSV table data conversion
- β’ Multi-language object code generation
Search and Locate Features
Provides powerful full-text search functionality supporting search for keys and values in JSON. Search results are highlighted with navigation for quick jumping. Supports regular expression search for complex pattern matching. Search history is automatically saved for convenient reuse.
- β’ Full-text search for keys and values
- β’ Search result highlighting
- β’ Regular expression search support
- β’ Automatic search history saving
File Operations & Data Validation
File Operation Features
Supports multiple file operation methods including drag-and-drop files to editor for direct import, one-click JSON file download, copy content to clipboard, etc. Supports large file processing with automatic encoding detection. Export options include formatted or compressed modes to meet different usage needs.
- β’ Drag-and-drop file direct import
- β’ Multi-format file download
- β’ One-click copy to clipboard
- β’ Intelligent large file processing
Data Validation Features
Provides real-time JSON syntax validation, instantly detecting errors during input and displaying detailed error information. Supports JSON Schema validation to verify data structure integrity and correctness. Error prompts include line numbers, column numbers, and specific error descriptions to help quickly locate and fix issues.
- β’ Real-time syntax error detection
- β’ JSON Schema structure validation
- β’ Detailed error information prompts
- β’ Precise error location positioning
Advanced Features & Tips
Advanced Features
Provides various advanced features to improve editing efficiency including fullscreen editing mode, keyboard shortcuts, auto-save, theme switching, etc. Supports custom editor configuration for adjusting font size, indentation method, line break settings, etc. Mobile optimization ensures smooth usage on phones and tablets.
Feature Highlights
Professional online JSON editor tool integrating JSON formatting, validation, conversion, search, and 12 core functions. Supports multiple editing modes, provides complete JSON data processing solutions for frontend development, backend development, data analysis, and various application scenarios.
Multi-mode JSON Editor
Professional online JSON editor providing text editing, tree view, table mode, and preview mode. Supports real-time mode switching to meet different scenarios for JSON data editing, viewing, and analysis.
JSON Formatting Beautifier
Powerful JSON formatting functionality for one-click beautification of messy JSON code. Supports custom indentation spaces and line break settings to make JSON data structure clear and readable, improving code maintainability.
JSON Compression Optimizer
Intelligent JSON compression functionality automatically removes excess whitespace and line breaks to generate compact JSON format. Reduces file size, improves transmission efficiency, suitable for production environments and API interfaces.
JSON Syntax Validator
Real-time JSON syntax checking tool that instantly detects JSON format errors during input. Provides detailed error information and precise line/column positioning to help quickly fix JSON syntax issues.
JSON Format Converter
Comprehensive JSON data format converter supporting bidirectional conversion between JSON and XML, YAML, CSV formats. Can also convert JSON to JavaScript, Python, Java, and other programming language object codes.
JSON Search Locator
Efficient JSON data search functionality supporting full-text search for keys and values in JSON. Provides search result highlighting and quick navigation positioning, greatly improving JSON data search efficiency.
Multi-format Data Converter
Professional data format conversion tool supporting bidirectional conversion between JSON and XML, YAML, CSV, and other mainstream data formats. Automatically handles format differences and data type mapping to meet data exchange needs in different development scenarios.
Programming Language Code Generator
Intelligent JSON to code conversion tool supporting conversion of JSON data to JavaScript, Python, Java, C#, Go, PHP, and other programming language object codes to accelerate development efficiency.
Fullscreen JSON Editor
Professional fullscreen editing mode providing immersive JSON editing experience. Supports keyboard shortcuts and maximizes editing space, suitable for processing large JSON files and complex data structures.
JSON File Processing Tool
Convenient JSON file operation functionality supporting drag-and-drop file direct import, one-click JSON file download, copy content to clipboard. Intelligently processes large files with automatic file encoding detection.
Mobile JSON Editor
Perfectly adapted JSON editor for phones and tablets providing touch-optimized operation interface. Supports gesture operations and virtual keyboard optimization for editing JSON data anytime, anywhere.
Secure JSON Processing Tool
Security-focused JSON editor with all data processing completed locally in the browser without uploading to any server. Supports offline usage ensuring privacy and security of sensitive JSON data.
Text Compare Tool
Powerful text comparison for side-by-side JSON comparisons, with visual diff of original and modified texts.
Code Examples
Learn how to process JSON data in different programming languages, including complete examples of serialization and deserialization.
JavaScript
Serialization (Object β JSON)
// JSON Serialization - Convert JavaScript object to JSON string
const user = {
id: 1,
name: "John Doe",
email: "[email protected]",
isActive: true,
tags: ["developer", "frontend"]
};
// Convert to JSON string
const jsonString = JSON.stringify(user);
console.log(jsonString);
// Output: {"id":1,"name":"John Doe","email":"[email protected]","isActive":true,"tags":["developer","frontend"]}
Deserialization (JSON β Object)
// JSON Deserialization - Convert JSON string to JavaScript object
const jsonData = '{"id":1,"name":"John Doe","email":"[email protected]","isActive":true,"tags":["developer","frontend"]}';
try {
// Parse JSON string
const user = JSON.parse(jsonData);
console.log(user.name); // Output: John Doe
console.log(user.tags); // Output: ["developer", "frontend"]
} catch (error) {
console.error('JSON parsing error:', error.message);
}
Python
Serialization (Dictionary β JSON)
import json
# JSON Serialization - Convert Python dictionary to JSON string
user = {
"id": 1,
"name": "John Doe",
"email": "[email protected]",
"is_active": True,
"tags": ["developer", "backend"]
}
# Convert to JSON string
json_string = json.dumps(user, indent=2)
print(json_string)
# Output formatted JSON string
Deserialization (JSON β Dictionary)
import json
# JSON Deserialization - Convert JSON string to Python object
json_data = '{"id":1,"name":"John Doe","email":"[email protected]","is_active":true,"tags":["developer","backend"]}'
try:
# Parse JSON string
user = json.loads(json_data)
print(user["name"]) # Output: John Doe
print(user["tags"]) # Output: ['developer', 'backend']
except json.JSONDecodeError as e:
print(f"JSON parsing error: {e}")
Java
Serialization (Object β JSON)
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.core.JsonProcessingException;
// User class definition
public class User {
private int id;
private String name;
private String email;
private boolean isActive;
private String[] tags;
// Constructor, getters and setters...
}
// JSON Serialization - Convert Java object to JSON string
ObjectMapper mapper = new ObjectMapper();
User user = new User(1, "John Doe", "[email protected]", true, new String[]{"developer", "Java"});
try {
String jsonString = mapper.writeValueAsString(user);
System.out.println(jsonString);
} catch (JsonProcessingException e) {
e.printStackTrace();
}
Deserialization (JSON β Object)
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.core.JsonProcessingException;
// JSON Deserialization - Convert JSON string to Java object
String jsonData = "{\"id\":1,\"name\":\"John Doe\",\"email\":\"[email protected]\",\"isActive\":true,\"tags\":[\"developer\",\"Java\"]}";
ObjectMapper mapper = new ObjectMapper();
try {
User user = mapper.readValue(jsonData, User.class);
System.out.println(user.getName()); // Output: John Doe
System.out.println(Arrays.toString(user.getTags())); // Output: [developer, Java]
} catch (JsonProcessingException e) {
System.err.println("JSON parsing error: " + e.getMessage());
}
C#
Serialization (Object β JSON)
using System;
using System.Text.Json;
using System.Collections.Generic;
// User class definition
public class User
{
public int Id { get; set; }
public string Name { get; set; }
public string Email { get; set; }
public bool IsActive { get; set; }
public List<string> Tags { get; set; }
}
// JSON Serialization - Convert C# object to JSON string
var user = new User
{
Id = 1,
Name = "John Doe",
Email = "[email protected]",
IsActive = true,
Tags = new List<string> { "developer", "C#" }
};
string jsonString = JsonSerializer.Serialize(user, new JsonSerializerOptions
{
WriteIndented = true
});
Console.WriteLine(jsonString);
Deserialization (JSON β Object)
using System;
using System.Text.Json;
// JSON Deserialization - Convert JSON string to C# object
string jsonData = "{\"Id\":1,\"Name\":\"John Doe\",\"Email\":\"[email protected]\",\"IsActive\":true,\"Tags\":[\"developer\",\"C#\"]}";
try
{
User user = JsonSerializer.Deserialize<User>(jsonData);
Console.WriteLine(user.Name); // Output: John Doe
Console.WriteLine(string.Join(", ", user.Tags)); // Output: developer, C#
}
catch (JsonException ex)
{
Console.WriteLine($"JSON parsing error: {ex.Message}");
}
Go
Serialization (Struct β JSON)
package main
import (
"encoding/json"
"fmt"
"log"
)
// User struct definition
type User struct {
ID int `json:"id"`
Name string `json:"name"`
Email string `json:"email"`
IsActive bool `json:"is_active"`
Tags []string `json:"tags"`
}
func main() {
// JSON Serialization - Convert Go struct to JSON string
user := User{
ID: 1,
Name: "John Doe",
Email: "[email protected]",
IsActive: true,
Tags: []string{"developer", "Go"},
}
jsonBytes, err := json.MarshalIndent(user, "", " ")
if err != nil {
log.Fatal(err)
}
fmt.Println(string(jsonBytes))
}
Deserialization (JSON β Struct)
package main
import (
"encoding/json"
"fmt"
"log"
)
func main() {
// JSON Deserialization - Convert JSON string to Go struct
jsonData := `{"id":1,"name":"John Doe","email":"[email protected]","is_active":true,"tags":["developer","Go"]}`
var user User
err := json.Unmarshal([]byte(jsonData), &user)
if err != nil {
log.Printf("JSON parsing error: %v", err)
return
}
fmt.Println(user.Name) // Output: John Doe
fmt.Println(user.Tags) // Output: [developer Go]
}
PHP
Serialization (Array β JSON)
<?php
// JSON Serialization - Convert PHP array to JSON string
$user = [
'id' => 1,
'name' => 'John Doe',
'email' => '[email protected]',
'is_active' => true,
'tags' => ['developer', 'PHP']
];
// Convert to JSON string
$jsonString = json_encode($user, JSON_PRETTY_PRINT);
if ($jsonString === false) {
echo 'JSON encoding error: ' . json_last_error_msg();
} else {
echo $jsonString;
}
?>
Deserialization (JSON β Array)
<?php
// JSON Deserialization - Convert JSON string to PHP array
$jsonData = '{"id":1,"name":"John Doe","email":"[email protected]","is_active":true,"tags":["developer","PHP"]}';
// Parse JSON string
$user = json_decode($jsonData, true);
if (json_last_error() !== JSON_ERROR_NONE) {
echo 'JSON parsing error: ' . json_last_error_msg();
} else {
echo $user['name']; // Output: John Doe
print_r($user['tags']); // Output: Array ( [0] => developer [1] => PHP )
}
?>
Frequently Asked Questions
What features does this JSON editor support?
Our JSON editor provides comprehensive feature support: four editing modes (text, tree, table, preview), real-time syntax validation, intelligent formatting and compression, multi-format conversion (XML, YAML, CSV, object code), full-text search positioning, file import/export, etc. Whether it's simple JSON formatting or complex data conversion, it can meet your needs.
How to handle large or complex JSON files?
The editor is optimized for large JSON files: tree view supports node collapsing to show only needed parts; search function can quickly locate specific data; table mode is convenient for viewing array data; preview mode provides safe read-only viewing. We recommend using tree view for deep nested data and table mode for structured array data.
What data format conversions are supported?
The editor supports bidirectional conversion between JSON and multiple formats: XML format conversion (suitable for configuration files and data exchange), YAML format conversion (suitable for configuration files), CSV format conversion (suitable for table data, requires object array format), programming language object code conversion (supports JavaScript, Python, Java, and other languages). All conversions support one-click copy and file download.
How is data security ensured?
Your data security is our top priority: all data processing is done locally in the browser without uploading to any server; supports offline usage without network connection; does not collect or store any user data; open source and transparent with auditable code. You can safely process sensitive JSON data including API keys, configuration files, etc.