API responses
Format API output so fields, arrays and nested objects are easier to inspect. This is helpful when testing integrations or reviewing webhook data.
Developer tool
Free JSON Formatter
Format, minify and validate JSON for API responses, configuration files and structured data.
Ready
How to use
Paste JSON, then format or minify.
Use it for API responses, configuration files, structured snippets and quick validation before sharing data.
Practical use
Format JSON for APIs, config files and debugging.
The JSON Formatter is useful when structured data arrives as a dense single line or when you need to validate a snippet before sending it to a developer, automation tool or API workflow. Paste JSON, format it for readability, or minify it for compact storage.
Example workflow: paste a webhook payload, format it, copy the readable output, then use CSV to JSON or JSON to CSV if the data needs to move into another format.
Privacy note: these Prima Ordia tools are designed for fast browser-based use. Avoid pasting highly confidential material into any online workflow unless it matches your organisation's policies.
Workflows
Common ways to use it
Configuration snippets
Before sharing configuration data, format it to make missing commas, unexpected nesting and mismatched fields easier to spot.
Minified output
Use minify when you need a compact version for examples, embedded data or quick technical notes.
Validation checks
Invalid JSON often fails because of trailing commas, unquoted keys or mismatched brackets. The formatter gives a quick signal before the data moves further.
Related tools
CSV to JSON Converter · JSON to CSV Converter · URL Encoder
Why use it
Fast, free and browser-based.
Format, minify and validate JSON for API responses, configuration files and structured data. No account required, and the page is designed for quick repeat use.
FAQ
Common questions
What does the JSON formatter do?
It takes pasted JSON and formats it for readability, minifies it for compact output, or shows an error if the JSON is invalid.
Can I use it for API responses?
Yes. It is useful for reviewing API responses, configuration snippets and structured data.
Does the JSON stay local?
Yes. The formatter runs in your browser.