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About JSON & CSV Converter & Viewer

The Ultimate Data Tool for Developers, Analysts, and Professionals.

Tired of wrestling with unreadable JSON and CSV files on the go? This powerful, pocket-sized `JSON & CSV Converter & Viewer` is your ultimate solution to view, convert, and manage structured data with unparalleled ease. Turn complex data into clean, actionable insights in seconds.

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🚀 Key Features

1. Powerful Data Visualization: See Your Data Clearly
* Instantly transforms messy JSON arrays and CSV files into a clean, intuitive table (grid) format.
* For non-tabular data (e.g., root-level JSON objects), the built-in text viewer lets you inspect the raw data without hassle.

2. Smart Two-Way Conversion: JSON ↔ CSV
* Effortlessly convert JSON to CSV or CSV to JSON with just a few taps.
* Stop worrying about data formats and get the file you need, when you need it.

3. Expert Nested JSON Handling (Advanced Feature)
Conquer complex nested JSON with two powerful conversion strategies, giving you full control over your output.

* ✅ Option 1: Flatten with Dots
* Converts structures like {"user": {"name": "John"}} into a flattened user.name header. Perfect for getting every piece of nested data into its own CSV column.

* ✅ Option 2: Keep Objects as Strings
* Preserves nested JSON objects and arrays as a raw string within a single cell. Ideal for maintaining the original data structure during conversion.

4. Edit and Save On-the-Go
* Open both original and converted files directly in the built-in text editor for quick modifications.
* Save your changes as a new file, streamlining your data preprocessing workflow.

5. Flexible Input Methods
* File Picker: Open .json and .csv files directly from your device.
* Paste from Clipboard: Quickly paste data copied from APIs, web pages, or other apps.
* Sample Data: Jump right in and test the app's core features with our included sample files.

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👍 Perfect For:

* Developers debugging API responses.
* Data Analysts & Marketers who need to convert data for tools like Excel.
* QA Engineers creating and validating test data.
* Students learning about data structures.

Stop wrestling with raw data.
Download `JSON & CSV Converter & Viewer` today and take control of your data workflow!

What’s new

Version 2.0.0 · Updated October 5, 2026

* Large File Streaming: Safely open large JSON, CSV, and text files up to 100MB+ with 90% less memory. * Direct Editor Routing: Large files (>10MB) open directly in editor mode for fast, smooth loading. * Refined Editor Layout: Maximized typing area with slimmer line number margins and a gutter divider. * Reliable Search & Replace: Memory-safe Replace All even on huge documents. * Stability improvements for JSON formatting and undo memory.

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