JSON Viewer & Editor 2026

KNS Studio

Contains adsIn-app purchases

About this app

JSON Viewer & Editor is a complete mobile tool for developers, API testers, and data analysts who work with JSON data.

Easily view, edit, format, validate, and share JSON files directly on your Android device with a clean Material 3 interface.

⚡ Key Features
• Multi-tab editor: Input, Output and Form views
• Real-time JSON validation with error line highlighting
• Beautify or minify JSON with custom indentation
• Sort keys alphabetically or by type/value
• Case transform: camelCase / snake_case / PascalCase
• Syntax highlighting, line numbers, undo/redo
• Import from clipboard, file, or URL
• Export as JSON, TXT, PDF, or HTML
• Share formatted JSON or QR code
• Tree view with collapse/expand nodes
• Auto-fix common syntax errors
• Multiple themes (Light, Dark, System + color schemes)
• Font customization and text size control
• Help guide and intro tutorial

💎 Pro Plan (One-Time Purchase)
• Remove all ads (banner + rewarded)
• Unlock Data Buckets (reusable JSON snippets)
• Full Form Editor access (add / edit / delete fields)
• Early access to new features

All data remains local — no cloud collection.
Start formatting your JSON like a pro today!