JSON Viewer – Interactive Structure Inspector
Inspect, search, validate, and explore JSON data with an interactive tree view, path finder, and depth statistics. 100% private and browser-based.
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Key Features & Capabilities
Everything you need to inspect and explore JSON datasets
🌲 Interactive Tree Explorer
Expand and collapse nested objects and arrays with color-coded data type badges.
📍 Instant JSON Path Finder
Click any node to reveal and copy its exact JSONPath identifier (e.g. $.data.items[0].id).
🔍 Real-time Search & Filter
Filter keys and values instantaneously with live matching counts and result highlights.
📊 Dataset Structural Metrics
Track file size, line counts, total keys, array sizes, and maximum nesting depth automatically.
✨ Pretty Print & Minify
Reformat ugly or minified JSON into clean 2-space indented structures or condense it into a single line.
🔒 100% Client-Side Privacy
Your JSON data is processed exclusively inside your browser RAM. Nothing is ever saved or uploaded.
Find the value or field you need in a JSON file
When a JSON response contains hundreds of nested fields, reading it line by line is slow. Use the viewer to open the file, expand only the relevant objects or arrays, search for a key or value, and copy a JSON path when you need to refer to a specific field.
1. Open the data you need to inspect
Paste JSON, drop a .json file, or load the sample. If the data came from an export or a response, start with the exact copy that is giving you trouble.
2. Follow the structure instead of scrolling
Expand the parent object or array that contains your field. Use Expand All only when you need the complete tree; for deeply nested files, opening a few branches at a time is easier to follow.
3. Search and copy the field path
Search for a key or value, then use the path shown for the matching node when discussing a field or locating it in another workflow. A path helps identify the location; it does not change the original JSON.
4. Check the data before reusing it
Look at neighbouring fields and array items to confirm you found the correct record. If the JSON is malformed, use the validator to identify the syntax problem before trying to explore it.
What this viewer is useful for
Use it to inspect nested API responses, configuration files, exported records, or unfamiliar JSON. It is a viewer, not a database editor: searching and expanding help you understand the structure, while changing the source data requires editing and saving a separate copy.
Frequently asked questions
How do I find one field in a large JSON file?
Load the file and use search to locate a key or value. Expand its parent nodes and check the path and nearby fields to confirm the match.
Can I use this to fix invalid JSON?
Use the JSON Validator to diagnose syntax errors. A viewer is most useful once the document can be parsed.
Does opening the file upload it?
The viewer processes the selected data locally in your browser rather than sending the file to a conversion server.
Frequently Asked Questions
Is my JSON data safe when using this JSON Viewer?
Yes, 100%. All processing and tree rendering happen entirely inside your local browser using client-side JavaScript. Zero data or files are uploaded to any external server.
How do I copy a specific JSON key path?
Simply click on any key or value node in the interactive tree view. The exact JSON path (e.g. $.users[0].address.city) will appear in the path bar, where you can click Copy Path to copy it instantly.
What happens if my JSON is invalid?
The tool automatically detects syntax errors, highlights the validation status in red, displays the exact parsing error message, and provides line and position details to help you fix it.
Can I view large JSON files offline?
Yes! Once loaded in your browser, the JSON Viewer works completely offline without requiring an active internet connection.