1. Paste JSON
Add raw JSON, API output, or a config snippet.
JSON Formatter
Format, validate, and minify JSON for API responses, config files, logs, and debugging. Paste raw JSON, choose readable indentation or compact output, then copy clean JSON.
2. Format or minify
Choose readable indentation or compact output.
3. Copy clean JSON
Copy the validated result for code, docs, or debugging.
Related tools
Useful next stepsJSON ValidatorValidate JSON and find syntax errorsJSON MinifierMinify JSON and remove whitespaceJSON CompareCompare JSON objects line by lineJSON to TypeScriptGenerate TypeScript interfaces from JSONCSV JSON ConverterConvert CSV to JSON and JSON to CSVCode FormatterFormat JavaScript, JSON, HTML, and CSS
When to use a JSON formatter
Use JSON Formatter when an API response, configuration file, webhook payload, or log entry is hard to read. Formatting makes nested objects, arrays, and values easier to inspect.
Popular JSON searches
- json formatter online
- json validator
- format json
- minify json
- json pretty print
JSON Formatter FAQ
How do I format JSON online?
Paste your JSON, choose the indentation size, and click Format JSON. The tool parses the input and returns readable formatted JSON.
What does JSON minify do?
Minifying JSON removes unnecessary spaces and line breaks while keeping the same data structure, which is useful for compact storage or transport.
Why is my JSON invalid?
Common causes include missing commas, trailing commas, unquoted property names, mismatched brackets, or strings that are not wrapped in double quotes.