JSON Lens: Editor & Viewer

JSON Lens is the ultimate professional-grade JSON viewer, editor, and formatter designed for developers, data engineers, and technical professionals. Whether you are debugging API responses, modifying configuration files, or analyzing complex datasets, JSON Lens brings a powerful, desktop-class JSON manipulation toolkit right to your mobile device.

Stop wrestling with clunky text editors or switching between multiple tools. JSON Lens is an all-in-one platform that makes reading, editing, comparing, and formatting JSON files faster and safer than ever before.

🌟 WHY CHOOSE JSON LENS?
Unlike basic JSON readers, JSON Lens is built for performance and reliability. Safely experiment with our industry-leading 50-step Undo/Redo system, instantly generate JSONPath notations with a single tap, and smoothly navigate massive files (100,000+ nodes) without your app freezing, thanks to our advanced virtual scrolling architecture.

🔥 CORE FEATURES & CAPABILITIES

Dual Editing Modes

Intuitive Tree View: Easily navigate complex, deeply nested JSON hierarchies with collapsible nodes. Edit values, rename keys, and change data types with a simple tap.

Powerful Code View: Prefer text? Switch to our fully-featured syntax-highlighted code editor with real-time validation and line numbering.

Professional Developer Tools

JSON Diff & Compare: Identify breaking changes instantly. Compare two JSON files side-by-side with color-coded highlighting for added, removed, and modified values.

JSONPath Copy: No more manual path construction. Long-press any node to instantly copy its exact JSONPath for your code or API documentation.

Robust Undo/Redo: Made a mistake? Seamlessly step back through up to 50 edit operations without losing your work.

Format & Analyze

Minify & Beautify: Instantly compress your JSON payloads for API transmission or format them with proper indentation for easy reading.

Advanced Statistics: Generate instant insights on file size, node count, maximum nesting depth, and data type distribution to optimize your database or schema.

Dual Search Mode: Quickly find specific keys, values, or strings across massive files using our real-time search engine.

Seamless File Management

Multiple Import Options: Create new files from scratch, load local .json files from your device, fetch JSON directly from API URLs, or paste from your clipboard.

System Clipboard Integration: Copy specific strings, numbers, or perfectly formatted JSON objects directly to your system clipboard for use in other apps.

Auto-Save & Drafts: Never lose your progress. JSON Lens automatically saves your work-in-progress drafts so you can pick up exactly where you left off.

⚡ UNMATCHED PERFORMANCE
Tired of JSON tools crashing on large files? JSON Lens features an intelligent Performance Mode that automatically optimizes rendering for massive documents, ensuring smooth scrolling and editing even when handling multi-megabyte database exports.

💎 FREEMIUM & AD-FREE OPTIONS
Access all core features completely free! For power users, upgrade via a one-time purchase or subscription to unlock our beautiful, eye-friendly Dark Mode and enjoy a 100% Ad-Free experience.

TARGET AUDIENCE
Perfect for Full-Stack Developers, Mobile App Devs, API Integration Specialists, DevOps Engineers, and System Administrators who need a reliable, on-the-go JSON companion.

Transform the way you handle data. Download JSON Lens today and experience the smartest way to view, edit, and master JSON on mobile!

Recent changes:
What’s New: Open .json files directly from your file manager — tapping a JSON will open it straight in the editor.
Fixes: Resolved duplicate Editor screens and back-navigation bug so exiting the editor returns to the home screen.
Improvements: Better handling of content:// and URIs and external file imports; opened files are now added to Recents.