JSON Viewer & Editor 2026

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!