Free JSON Viewer Online

Json Viewer helps beautify cluttered JSON data into a readable format and also validate its structure with precision. Designed for developers, by developers, Json Viewer is a free online JSON Validator & JSON Beautifier.

Web Developers

Ideal for web developers, this tool streamlines JSON handling for both client and server-side scripting, ensuring data integrity and readability in responsive, dynamic web applications.

API Developers

Invaluable for API developers, this tool guarantees well-structured JSON responses and requests, crucial for smooth interactions between various software components and services.

Data Analysts

Data analysts will find this tool beneficial for swiftly validating and reformatting JSON data sets, crucial in data cleaning and preparation for accurate and organized analysis.

How Does JSON Viewer Work?

Using JSON Validator & JSON Beautifier is as easy as 1-2-3:


Paste or upload your JSON data

Easily upload or paste your JSON data for interactive handling. Supports complex structures, ideal for web development, APIs, and various JSON formats.


Click 'Validate' to check for errors

Validate your JSON data with a single click to identify and rectify errors, ensuring accuracy and consistency in your web development and data analysis.


Click 'Beautify/View' to format your JSON

Click 'Beautify' to automatically format and organize your JSON data, enhancing readability and structure for better analysis and development efficiency.

Why Choose our JSON Viewer?

Instant Validation

With a simple click, validate your JSON data to ensure its accuracy and integrity. Our tool swiftly identifies any syntax errors, so you can fix them on the go.

Automatic Beautification

Transform your JSON data into a readable and well-structured format. Our beautifier organizes your data with proper indentation and spacing, making it easier to read and understand.


Spend less time debugging and more time creating. Our tools quick validation and beautification process helps you streamline your workflow.

User-Friendly Interface

No complex configurations required. Our intuitive interface is built for ease of use, making JSON handling accessible to beginners and seasoned developers alike.

Secure and Confidential

Your datas privacy is our priority. The validation and beautification process is done locally on your device, ensuring your data never leaves your sight.

About Us

We are a team of enthusiastic developers building beautiful tools and products that enhance productivity, promote learning and solve real world problems.

Few other tools built by our team include Citation Generator and ChatWithPDF .

JsonViewer is free tool offering JSON Beautifier, JSON Validator, and Editor functionalities, with syntax highlighting and tree view for efficient data handling.

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