Free JSON Formatter & Beautifier — Usely's Online JSON Tool
Usely's JSON formatter is the fastest free online tool to format JSON, beautify JSON, validate JSON, and parse JSON instantly. Paste any raw or minified JSON string and press Format (or Ctrl+Enter) to get a clean, indented, syntax-highlighted output in seconds.
Unlike other JSON formatters, Usely also lets you convert JSON to CSV, XML, YAML, and TypeScript, compare two JSON objects with a visual JSON diff, query data with JSONPath expressions, and explore nested structures in an interactive tree view — all for free, all in your browser, with zero data ever leaving your device.
Supported: $ root,
. child,
.. recursive,
[*] wildcard,
[n] index,
[?(@.key)] filter
How to Format JSON with Usely — 4 Easy Steps
Paste Your JSON
Paste raw, minified, or malformed JSON into the input panel on the left. You can also upload a .json file or fetch JSON from any public API URL.
Click Format
Press the Format button or hit Ctrl+Enter. Usely validates your JSON instantly and shows any syntax errors with exact line numbers.
Explore the Output
View your formatted JSON with syntax highlighting and line numbers. Switch to Tree View to explore nested objects and arrays interactively.
Export or Convert
Copy or download formatted JSON. Convert to CSV, XML, YAML, or TypeScript. Run JSONPath queries or compare two JSONs with the diff tool.
Everything you need for JSON — in one free online tool
Format & Beautify JSON
Pretty-print raw or minified JSON with 2 spaces, 4 spaces, or tab indentation. The Usely JSON formatter makes any JSON human-readable in milliseconds.
Validate JSON Online
Real-time JSON syntax validation with exact line and column error reporting. No more guessing where your JSON broke — Usely pinpoints the error instantly.
Minify / Compress JSON
Strip all whitespace from JSON for production APIs. Save bandwidth, reduce payload size, and speed up API responses with one click.
Interactive JSON Tree View
Explore deep nested JSON in a collapsible tree. Expand or collapse any node — even the entire structure — to understand complex data at a glance.
JSON to CSV Converter
Export JSON arrays as spreadsheet-ready CSV. Download and open directly in Excel or Google Sheets without any manual reformatting.
JSON to XML Converter
Convert JSON to valid XML markup. Ideal for legacy system integrations, SOAP APIs, and enterprise data pipelines.
JSON to YAML Converter
Export config files as YAML for Docker, Kubernetes, Ansible and other DevOps toolchains. Works with any JSON structure.
JSON to TypeScript
Auto-generate TypeScript interfaces from any JSON structure. Stop writing interfaces by hand — Usely infers types for React, Next.js and Node.js projects.
JSON Diff & Compare
Paste two JSON objects and see exactly which keys were added, removed, or changed — side by side with color coding. Perfect for debugging API breaking changes.
JSONPath Query Tool
Filter and extract data with powerful JSONPath expressions. Supports dot notation, wildcards, array slices, recursive descent, and filter expressions.
Sort JSON Keys
Alphabetically sort all object keys at every depth. Makes JSON diffs cleaner and code reviews easier — just click Sort Keys.
Remove Null Values
One click to clean up all null values from your JSON payload before sending to an API or storing in a database.
Frequently Asked Questions about Usely JSON Formatter
$.users[*].name to extract all user names, or $.items[?(@.price<100)] to filter items by price. In Usely's JSON formatter, paste your JSON, click the JSONPath tab, enter your expression, and hit Run Query.