JSON Viewer
Instantly view and explore raw JSON data in an easy-to-read, formatted tree with our free online JSON Viewer.
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JSON Viewer is an online tool that converts raw JSON code into a human‑readable form. JSON (JavaScript Object Notation) is widely used in web development and API integrations, but the nested structures and braces can be hard to read. A viewer formats the data into a structured tree so you can explore it easily.
Our JSON Viewer offers several helpful features:
- Pretty JSON formatting – the tool reformats any JSON string into a neatly indented, structured layout for clarity.
- Tree view navigation – expand or collapse nodes to understand the hierarchy of your data.
- Syntax highlighting – different data types and elements are color‑coded, making it easier to recognize keys and values.
- Ease of use – the interface is intuitive, so you can paste data and view it instantly.
- Privacy – your JSON is processed in your browser; we do not store or share your data.
- Mobile compatibility – the viewer works on smartphones and tablets so you can inspect JSON on the go.
Using a JSON viewer improves readability and reduces the time you spend debugging and analysing data sets. It’s ideal for developers working with APIs, data analysts exploring large datasets and educators teaching JSON structure.
How to use:
1. Input JSON: paste your JSON string into the input field.
2. View formatted JSON: click the “View” or “Format” button to transform the raw data into a structured tree.
3. Explore: expand and collapse nodes to navigate through the hierarchy and understand the structure.
Use cases:
- Web development – debug and analyse JSON responses from web APIs and ensure proper structure.
- API integration – inspect API responses to troubleshoot integration issues.
- Data analysis – transform large JSON datasets into a readable format for insight extraction.
- Education – help students and instructors explore JSON syntax and structures.
FAQs:
**What is a JSON viewer?** A JSON viewer is a tool that transforms raw JSON into a structured tree to make the data easier to read and navigate.
**Why would I use a JSON viewer?** Developers and analysts use viewers to understand data schema and debug JSON without manually formatting the code.
**Can this viewer handle large JSON files?** Many JSON viewers are designed to handle large datasets, though performance depends on your file size and browser.
**Is my data stored or shared?** No – the viewer processes your JSON locally; we do not store or share your data.
**Can I use the viewer on mobile or as a browser extension?** Yes, our tool works on mobile devices and modern browsers; some viewers also offer extensions for formatting JSON directly in your browser.