JSON File Viewer
Upload and view JSON files with syntax highlighting and tree view. Format and validate your JSON data easily.
Input Methods
JSON Metadata
Effortlessly View and Analyze JSON Files Online
Working with JSON files is fundamental in modern web development, data exchange, and configuration management. Our online JSON file viewer provides a simple and powerful way to upload, parse, and explore your JSON data directly in your browser. No need to install any software – just upload your `.json` file and start analyzing.
How to Use the JSON File Viewer
- Locate Your File: Find the `.json` file on your computer that you wish to view.
- Upload the File: Click the "Upload JSON File" button. This will open your system's file browser.
- Select and Open: Choose your JSON file and click "Open" or equivalent.
- View Your Data: The tool will instantly parse the file. If the JSON is valid, its content will be displayed in multiple formats (Tree View, Code View, Raw Text) in the tabs section above. Invalid JSON files will trigger an error message.
- Explore: Use the Tree View for navigating complex structures, the Code View for syntax highlighting, or the Raw Text view for the original content. Metadata like object keys count and size is also displayed.
Benefits of Viewing JSON Files Online
- Instant Access: Open and view JSON files quickly without dedicated software.
- User-Friendly Interface: Multiple views (Tree, Code, Raw) cater to different analysis needs.
- Validation: Automatically checks if the uploaded file contains valid JSON syntax.
- Data Exploration: Easily navigate nested objects and arrays in the Tree View.
- Metadata Insights: Get quick information about the structure and size of your JSON data.
- History Tracking: Previously viewed JSON structures are saved locally for quick access later.
Whether you need to quickly inspect a configuration file, analyze an API response saved locally, or simply open a JSON file online, our tool offers a seamless experience. It's the perfect free online JSON viewer for developers, testers, and data enthusiasts.
Recent History
Core Features & Tools
Instant Validation
Paste or upload JSON and get immediate syntax validation to catch errors quickly.
Flexible Viewing
Explore data with Tree View for structure or Code View for syntax highlighting.
Effortless Comparison
Quickly identify differences between two JSON objects with our visual diff tool.
Multiple Input Options
Work with JSON from direct input, file uploads, or by fetching directly from URLs.
Format & Beautify
Clean up messy JSON or minify it for production with a single click.
JS Code Compiler
Test and run JavaScript snippets directly in your browser with our integrated compiler.
From Our Blog
Understanding JSON: The Basics
A quick intro to JSON syntax, data types, and common use cases in modern web development.
Tips for Debugging JSON APIs
Learn common pitfalls and techniques for troubleshooting JSON API responses effectively.
Why Choose JSON Over XML?
Comparing the two popular data interchange formats for web services and configuration files.
Advanced JSON Handling in JS
Explore powerful techniques for parsing, transforming, and manipulating JSON data using JavaScript.
How to Use the JSON File Viewer
- Click the upload button or drag and drop your JSON file
- Your JSON data will be automatically formatted and displayed
- Use the formatting options to customize the view
- Copy or download the formatted JSON