Is this JSON formatter free?

Yes, Usely's JSON formatter is completely free with no login required, no usage limits, and no watermarks.

Can I convert JSON to CSV?

Yes. Paste your JSON array and click the CSV tab to download a comma-separated file ready for Excel or Google Sheets.

Does this tool store my JSON data?

No. All processing happens in your browser using JavaScript. Your data never leaves your device.

JSON Formatter, Beautifier, Validator & Parser — Free Online Tool

Paste your JSON below and click Format

✎ Input

✓ Output

Paste JSON and press Format (or Ctrl+Enter) to see the tree view. ℹ️ Valid JSON typed in the input will auto-populate the tree when you click Tree View.

JSON → CSV (Array of Objects)

JSON → XML

JSON → YAML

JSON → TypeScript Interface

JSON A — Original

JSON B — Modified

Query Result

Supported: $ root, . child, .. recursive, [*] wildcard, [n] index, [?(@.key)] filter

Escape JSON → String

Unescape String → JSON

📋

Sort Keys A→Z

Alphabetically sort all object keys at every depth level.

🧹

Remove Null Values

Strip all null and undefined fields from the JSON recursively.

🧹

Remove Empty Strings

Clean up empty string values ("") from the JSON structure.

📄

Flatten JSON

Convert nested JSON into a single-depth key path structure.

🗝️

Extract Keys Only

Get a list of all keys from the JSON object.

📦

Extract Values Only

Get a flat array of all values from the JSON object.

🔢

Count All Keys

Count the total number of keys across all nested objects.

🎲

Random Sample JSON

Load a random complex sample to explore all features.

Everything you need for JSON — in one place

📋

Format & Beautify

Pretty-print raw or minified JSON with 2 spaces, 4 spaces, or tab indentation. Readable in seconds.

✅

Validate JSON

Real-time syntax validation with exact line and column error reporting. No more JSON.parse guessing.

⚡

Minify / Compress

Strip all whitespace from JSON for production APIs. Save bandwidth and speed up responses.

🌳

Interactive Tree View

Explore deep nested JSON in a collapsible tree. Expand or collapse any node — even the entire structure.

📃

JSON to CSV

Export JSON arrays as spreadsheet-ready CSV. Download and open directly in Excel or Google Sheets.

🗂️

JSON to XML

Convert JSON to valid XML markup. Great for legacy system integrations and SOAP APIs.

📝

JSON to YAML

Export config files as YAML for Docker, Kubernetes, Ansible and other DevOps toolchains.

💻

JSON to TypeScript

Auto-generate TypeScript interfaces from any JSON structure. Stop writing interfaces by hand.

🔍

JSON Diff / Compare

Paste two JSON objects and see exactly which keys were added, removed, or changed — line by line.

🧭

JSONPath Query

Filter data with powerful JSONPath expressions. Supports dot notation, wildcards, array slices and filters.

🔠

Sort Keys

Alphabetically sort all object keys at every depth. Makes JSON diffs and code reviews much cleaner.

🧹

Remove Nulls

One click to clean up all null values from your JSON payload before sending to an API.

Frequently Asked Questions

What is a JSON formatter and why do I need one?

A JSON formatter takes raw or minified JSON text and adds proper indentation and line breaks to make it human-readable. APIs typically return compact JSON to save bandwidth. A formatter lets you read, debug and understand it instantly without writing any code.

Is my JSON data safe? Does it get uploaded anywhere?

No. All processing happens entirely in your browser using JavaScript. Your JSON data never leaves your device and is never sent to any server. It is 100% private and secure — even if you're working with sensitive API keys or personal data.

How do I convert JSON to CSV?

Paste your JSON array into the input, click Format, then click the CSV tab and hit Generate CSV. The tool automatically detects the keys from the first object as column headers and maps all values. You can copy the output or download a .csv file directly.

What is JSONPath and how do I use it?

JSONPath is a query language for JSON, similar to XPath for XML. Use $.users[*].name to extract all user names, or $.items[?(@.price<100)] to filter items by price. Paste your JSON, click the JSONPath tab, enter your expression, and hit Run Query.

Can I generate TypeScript interfaces from JSON?

Yes. Format your JSON and click the TypeScript tab, then Generate TypeScript. The tool analyzes the structure and infers types for each field (string, number, boolean, arrays, nested interfaces). It generates ready-to-paste interface definitions — ideal for React, Next.js, and Node.js projects.

What is the difference between formatting and minifying JSON?

Formatting adds indentation and newlines to make JSON readable for humans. Minifying removes all whitespace to make JSON compact for production use — smaller payloads mean faster API responses and less bandwidth. Use formatting for debugging and minifying for deployment.