Format, Validate, and Convert JSON Data. Supports Minification, Beautification, and Conversion to YAML, XML, CSV Formats.
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Enter raw JSON data into the editor. You can paste minified API responses, configuration files, or any JSON string you need to work with.
Select whether you want to beautify (pretty-print with indentation), minify (compress to a single line), or convert your JSON to another format like YAML, XML, or CSV.
The tool automatically validates your JSON as you type, highlighting syntax errors with line numbers and descriptive messages so you can fix issues quickly.
Once formatted, copy the result to your clipboard with one click or download it as a file. The output preserves proper encoding and structure.
Instantly detects syntax errors, mismatched brackets, trailing commas, and other common JSON issues with precise line and column numbers.
Pretty-print JSON with configurable indentation (2, 4, or 8 spaces) or compress it to a single line for production use.
Convert JSON to YAML, XML, CSV, or URL parameter formats with a single click, making it easy to work across different data interchange standards.
Explore nested objects with a tree view, see key counts at each depth level, and extract JSON paths for use in your code.
All formatting and validation happens entirely in your browser. Your data never leaves your device, keeping API keys and sensitive payloads private.
Optimized parsing engine processes large JSON documents smoothly, so you can work with multi-megabyte API responses without lag.
Developers routinely deal with minified JSON from REST APIs, webhook payloads, and log files. Reading a wall of compressed text is painful and error-prone. A JSON formatter transforms that into cleanly indented, syntax-highlighted output you can scan in seconds, making debugging API integrations and inspecting data structures far more efficient.
Beyond readability, validation catches subtle bugs before they reach production. A missing comma after a copy-paste, an unescaped quote inside a string value, or a trailing comma that some parsers reject can all be flagged immediately. The converter feature is equally useful when you need to hand data to a team that works in YAML or when importing into a spreadsheet via CSV.
Whether you are building microservices, configuring infrastructure-as-code, or simply cleaning up a messy config file, a reliable JSON formatter is one of the most-used tools in a developer workflow. Because this tool runs entirely client-side, it is safe for working with tokens, credentials, and other sensitive configuration data.
No. All formatting, validation, and conversion happens entirely in your browser using JavaScript. Your data never leaves your device, making it safe to use with API keys, tokens, and other sensitive information.
The validator catches syntax errors such as missing or extra commas, mismatched brackets and braces, unquoted keys, single-quoted strings, trailing commas, and invalid escape sequences. Each error includes the line number and a description of the problem.
Yes. The tool supports one-click conversion from JSON to YAML, XML, and CSV formats. Nested objects are handled gracefully, and the output is ready to paste into your target application or save as a file.
There is no hard limit. The tool runs in your browser, so performance depends on your device. Most modern browsers handle JSON files up to several megabytes without issues. For extremely large files, minification mode uses less memory than beautification.
You can choose between 2, 4, or 8 spaces for indentation when beautifying. The default is 2 spaces, which is the most common convention in JavaScript and TypeScript projects.
Encode or decode Base64 strings, commonly used in JSON payloads and API authentication headers.
Decode JSON Web Tokens to inspect their JSON header and payload claims.
Minify JavaScript code alongside your JSON configs for optimized production bundles.
Generate unique identifiers commonly used as JSON record keys and database IDs.