JSON Viewer & Editor

CosmoVex

Contains ads

About this app

JSON Viewer & Editor helps you view, edit, format, and validate JSON right on your phone. Whether you're a developer debugging an API response, a student learning data structures, or anyone who works with JSON files — this app makes it effortless.

★ INSTANT JSON VIEWER
• Paste JSON and view instantly with one tap
• Auto-detects JSON in your clipboard — no extra steps
• Open .json files directly from your file manager
• Receive shared JSON from any app
• Interactive tree view with collapsible nodes
• Color-coded data types: strings, numbers, booleans, nulls
• Tap any value to copy, long press to copy the full path

★ POWERFUL JSON EDITOR
• Built-in editor with JSON keyboard shortcuts
• Quick-insert keys: { } [ ] " : , true false null
• Real-time JSON validation as you type
• Auto-format and pretty print with one tap
• Insert ready-made JSON snippets instantly

★ JSON FORMATTER & BEAUTIFIER
• Pretty print JSON with proper indentation
• Minify JSON to compact single-line format
• Formatted view with selectable text
• Switch between Tree View, Formatted, and Edit modes

★ JSON VALIDATOR
• Validate JSON instantly with clear error messages
• Pinpoints exact location of syntax errors
• Status bar shows validation state in real time

★ JSON CONVERTER
• Convert JSON to YAML — copy with one tap
• Convert JSON arrays to CSV tables
• Export as Key=Value pairs for config files
• Share JSON as a file to any app

★ API CLIENT
• Send HTTP requests (GET, POST, PUT, PATCH, DELETE) directly from the app
• Add custom headers and request body
• View response status, headers, and body
• Open JSON responses directly in the viewer
• Request history to revisit previous API calls
• Supports both HTTP and HTTPS endpoints

★ SMART FEATURES
• Clipboard auto-detection — opens JSON automatically
• 8 built-in templates: API Response, User Profile, Package Config, Product Catalog, App Settings, Weather Data, Blog Post, Database Schema
• 6 code snippets for quick JSON structure insertion
• Session auto-save — resume right where you left off
• Full history of recently viewed JSON files
• Search across all keys and values in tree view
• Expand all / Collapse all with one tap

★ DEVELOPER FRIENDLY
• Monospace font (JetBrains Mono) for easy reading
• Deep link support — tap any .json file to open
• Share intent support — receive JSON from browsers, Slack, Postman
• Lightweight — no account required, works offline
• Dark theme optimized for comfortable use

★ BUILT FOR EVERYDAY USE
JSON Viewer & Editor is designed for everyone, not just developers. View JSON in a clean tree, copy what you need, edit and validate — all in one place.

Whether you're inspecting API responses, testing REST endpoints, reading configuration files, exploring datasets, or learning JSON for the first time — JSON Viewer & Editor has you covered.

TEMPLATES INCLUDED:
• API Response — REST API structure with pagination
• Package Config — npm/pubspec style package file
• User Profile — user data with nested addresses
• Product Catalog — e-commerce product listing
• App Settings — mobile app configuration
• Weather Data — weather API response format
• Blog Post — CMS content structure
• Database Schema — table definitions with fields