Developer Tool
JSON Formatter
Format, beautify, validate, and minify JSON online with a fast browser-based JSON formatter.
JSON Input
Paste or type valid JSON below.
Formatted Output
Your formatted or minified JSON appears here.
How to use the JSON Formatter
- 1. Paste or type your JSON into the input box.
- 2. Click Format JSON to validate and organize the JSON with readable indentation.
- 3. Click Minify JSON to remove unnecessary whitespace and produce a compact JSON string.
- 4. Use Copy Output to copy the result to your clipboard.
What is JSON?
JSON, or JavaScript Object Notation, is a lightweight text format used to represent structured data. JSON is commonly used for APIs, web applications, configuration files, data exchange, and software development.
JSON uses objects, arrays, strings, numbers, booleans, and null values. Because the syntax is structured and strict, a missing comma, quotation mark, bracket, or other character can make a JSON document invalid.
Format JSON vs. Minify JSON
Format JSON
Formatting adds indentation and line breaks so nested objects and arrays are easier to read, inspect, and troubleshoot.
Minify JSON
Minification removes unnecessary whitespace while preserving the same JSON data structure. This can make JSON more compact for transmission or storage.
Common uses
- Debugging API responses
- Checking JSON syntax
- Reading configuration data
- Preparing compact JSON for applications
- Inspecting nested objects and arrays
- Learning and practicing JSON syntax
Browser-based processing
JSON parsing, formatting, and minification are performed directly in your browser using built-in JavaScript functionality. The tool does not require an account or a server-side JSON processing service.
Because processing happens in the browser, the JSON you enter does not need to be uploaded to a remote JSON formatting service to perform these operations.
JSON Formatter FAQ
Does the formatter validate JSON?
Yes. The formatter parses the JSON before producing formatted or minified output. Invalid JSON produces an error message instead of formatted output.
What is the difference between formatting and minifying?
Formatting makes JSON easier for people to read by adding indentation and line breaks. Minifying removes unnecessary whitespace to make the JSON more compact.
Can I use this tool for API responses?
Yes. You can paste a JSON API response into the input area to validate its syntax and make nested data easier to inspect.
Do I need to install software?
No. The JSON Formatter runs in a modern web browser and does not require additional software or an account.