Input0 characters
1
Output
Prettified JSON code view is currently empty.
Solve parsing errors, input standard markup fields, or click "Validate & Parse" button on the left to show colorized code.
Solve parsing errors, input standard markup fields, or click "Validate & Parse" button on the left to show colorized code.
JSON (JavaScript Object Notation) is a lightweight, text-based data format used to store and transport data. It's the "language of the web," designed to be easy for humans to read and write, and efficient for machines to parse. Most modern APIs and web services use JSON to exchange information.
Whether you're a developer debugging an API, a data scientist cleaning exports, or a student learning to code, having a reliable way to visualize JSON is essential. Our tool simplifies this by turning raw strings into structured, actionable information, making data inspection and troubleshooting significantly faster.
Copy your raw JSON data from your source and paste it into the Input editor on the left. You can also drag and drop a `.json` file directly into the area.
Click the central Parse button (or press `Ctrl + Enter`). The tool will immediately validate your syntax and show any errors found.
Switch to the Collapsible Tree tab in the Output panel to explore your data structure visually with expandable nodes.
Once formatted, click the Copy icon in the Pretty Print tab to save the beautified or minified JSON back to your clipboard.
Use the download action to save your processed JSON directly as a file, preserving the formatting or minification you applied.
{"user":{"id":1,"name":"John Doe","roles":["admin","editor"],"settings":{"theme":"dark","notifications":true}}}{
"user": {
"id": 1,
"name": "John Doe",
"roles": [
"admin",
"editor"
],
"settings": {
"theme": "dark",
"notifications": true
}
}
}
Minified JSON is great for saving bandwidth but impossible for humans to audit. Formatting adds consistent indentation and line breaks, making the hierarchy clear.
Finding a missing comma or a type mismatch in a single line of 10,000 characters is a nightmare. Our validator pinpoints the exact line and column in formatted view.
Syntax highlighting differentiates keys from values (strings, numbers, booleans), allowing you to understand the data schema at a glance.
Tip: You can use the "Shuffle" button in the Code View to randomize keys, which is helpful for testing how your application handles non-deterministic key ordering.
Every key-value pair except the last one must be followed by a comma.
JSON keys and string values must be wrapped in double quotes. Single quotes are not valid.
The last item in an object or array should not have a trailing comma.
Use square brackets `[]` for lists (arrays) and curly braces `` for objects (key-value pairs).
Every opening brace or bracket must have a corresponding closing pair.
Instantly transform messy or minified JSON into a clean, readable format with standardized indentation.
Real-time validation against the JSON spec, identifying syntax errors and structural issues as you type.
Compress your data to the smallest possible size by removing all unnecessary whitespace and line breaks.
Explore complex structures with a collapsible hierarchical tree, perfect for drilling into deeply nested keys.
Precise error reporting with line and column highlighting, helping you pinpoint syntax issues instantly.
Gain insights into your data with counts for characters, lines, nesting depth, and value distributions.
Work faster with built-in hotkeys for formatting, minifying, and clearing your workspace instantly.
All parsing and formatting happen locally in your browser. Your data never leaves your device.
JSON (JavaScript Object Notation) is a lightweight format for storing and transporting data. It is easy for humans to read and write and easy for machines to parse and generate.
Yes. JSON View Parser is completely free, with no sign-up, account, or installation required. Just open the page and start working with your JSON.
No. All parsing, formatting, validation, and analysis happen entirely inside your web browser on your own device. Your JSON is never uploaded, stored, or transmitted to us or any third party, so it is safe to paste sensitive data such as API responses or configuration files.
Formatting (also called beautifying or pretty-printing) adds line breaks and indentation to make JSON easy to read. Minifying does the opposite: it removes all unnecessary whitespace to make the file as small as possible, which is useful for sending data over a network. JSON View Parser can do both with one click.
The most common causes are trailing commas after the last item, using single quotes instead of double quotes, unquoted keys, missing or mismatched braces and brackets, or comments (standard JSON does not allow comments). The tool shows the exact line and column of the first error so you can fix it quickly.
There is no fixed limit. Because everything runs in your browser, very large documents (several megabytes or more) may take longer to render, but typical API responses and configuration files are handled efficiently.
All processing is done locally, so your data stays offline. You only need an internet connection to load the page itself the first time.
JSON View Parser works in all modern browsers, including Google Chrome, Mozilla Firefox, Microsoft Edge, and Safari, on both desktop and mobile.
Standard JSON does not allow comments or trailing commas. JSON View Parser validates against the standard, so you will need to manually correct any non-standard syntax to make your data valid JSON.
Absolutely. Simply copy the JSON response from your API debugger or network tab and paste it into our tool to validate its structure.
Yes, you can use the download feature to save your formatted or minified JSON directly as a .json file.
Yes, you can press Ctrl + Enter (or Cmd + Enter on Mac) to manually trigger validation and sync the output.
Yes! We have a built-in search bar in both the Pretty Print and Collapsible Tree views to help you find specific keys or values quickly.
Yes, we support both Light and Dark themes. You can toggle between them using the theme switcher in the header.
Yes, the 'Statistics' tab provides deep insights into your data, including character count, line count, maximum nesting depth, and a breakdown of data types.