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JSON Formatter

Developer Tool Guide
Online JSON Formatter & Parser
In frontend development and backend API integration, JSON is the most common data exchange format. However, unformatted JSON data is usually a dense line of characters, extremely hard to read. This open-source JSON Formatter aims to help developers quickly layout, validate, and clean data during the debugging phase.
Core Features
  • Highlighting & Folding: Provides a tree hierarchy and colorful highlighting to make complex JSON structures intuitive.
  • Smart Error Localization: When input JSON has syntax errors, the engine automatically points out the error location to help troubleshoot anomalies.
  • Minify & Escape: One-click indentation removal to make it single-line (minify); supports escaping/unescaping to easily embed JSON in HTML attributes or Java strings.
  • Unicode Conversion: Automatically processes Unicode encoding like `\u4e2d\u6587` into readable characters, a great helper for locating garbled data.