JSON Processing Tool

Instructions for Online JSON Formatter

This tool supports standard JSON and loose JSON5 data processing, integrating online editing, syntax checking, format beautification, escape conversion, local file import & export, and one-click text copy functions. The editor comes with syntax highlighting and real-time error marking to quickly locate and fix JSON writing exceptions.

Basic Operations of Edit Area

1. Sample JSON content is loaded by default on page initialization. You can edit it directly or paste your own JSON data to overwrite existing content.
2. When syntax errors occur during writing, abnormal lines will be marked beside line numbers, and specific error reasons will be displayed at the top of the page.
3. JSON5 texts with comments and non-strict writing formats can be parsed, and the final output will be unified into standard compliant JSON format.

Introduction to Function Buttons

Import File

Load content from local JSON files into the edit area; the maximum limit for a single file is 5MB, damaged files cannot be parsed normally.

Beautify Format

Automatically add indentation and line breaks to messy JSON to generate hierarchical, readable standard formatted JSON text.

Single Line Compression

Convert multi-line formatted JSON into single-line text without line breaks or redundant spaces, suitable for filling API parameters and storing configuration content.

Key Sorting

Automatically sort keys of all layers inside JSON objects in ascending alphabetical order, and synchronously sort keys inside nested objects; array structures do not support sorting operations.

JSON Escape

Convert standard JSON into string format with escape characters, commonly used for embedding into JS code, string variables, API request parameters and other scenarios.

Unescape

Restore escaped JSON strings back to standard JSON that can be viewed and edited directly.

Format Validation

Only detect whether the current JSON syntax is legal without modifying the original text. A success prompt pops up when the format is normal, and specific error information is displayed for syntax errors.

Clear Editor

Clear all content in the edit area and automatically fill the empty object "{}" to avoid errors when executing functions with blank content.

Quick Operations on the Right Side

Download File

Export all current content in the editor as a local ".json" file with a timestamp in the filename to distinguish historical files conveniently.

Copy Content

Copy all text in the editor to the system clipboard with one click.