JSON formatter
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Paste raw JSON on the left and copy the formatted result instantly.Popular
JSON Formatting Online
Beautify JSON, minify payloads, and inspect data faster.
This free online JSON formatter is useful for developers, QA workflows, API testing, config cleanup, and documentation work where readable structured JSON matters.
Read API responses clearly
Pretty-printed JSON makes nested objects, arrays, keys, and values easier to scan when you are debugging APIs or reviewing payloads from external services.
Switch between formatted and compact output
Use beautify mode when you need readable JSON, then minify the same content when you want a compact string for transport, storage, or embedding.
Keep the workflow in one browser tab
This browser-based JSON formatter is designed for quick cleanup, copying, and sharing without switching to a separate editor for simple formatting tasks.
Formatter FAQ
Common questions about formatting JSON online.
What does a JSON formatter do?
A JSON formatter turns compressed or messy JSON into readable structured output with indentation, which makes API responses, config files, and payloads easier to inspect.
Can I minify JSON here too?
Yes. This page supports both beautifying JSON for readability and minifying JSON when you need compact output for transport or storage.
Does the formatter run in the browser?
Yes. The formatting workflow runs in the browser, which keeps the tool fast for everyday development and debugging tasks.
Related JSON Tools
Move into validation, conversion, and export workflows.
If you need more than pretty printing, continue with nearby JSON tools built for syntax checks, model generation, and spreadsheet exports.
JSON Validator
Validate JSON syntax and inspect parsed output when you need to confirm that a payload is valid before using it in production or testing.
JSON to Dart
Generate Dart model classes from structured JSON when you are moving from API responses into Flutter or Dart application code.
JSON to CSV & Excel
Flatten JSON into spreadsheet-friendly rows when you need exports for reporting, review, or non-technical stakeholders.