JSON Formatter: Pretty Print and Minify Online
Format or minify JSON instantly, detect syntax issues, and switch between light and dark themes for API debugging and log analysis.
Source JSON
Paste your JSON and choose to pretty-print or minify the output.
Formatted output
Once parsed successfully, the result appears here and can be copied.
Formatted JSON will appear here.
JSON debugging tips
Use formatting, compression and status hints to prepare API samples quickly.
- Use “Load sample” to demonstrate the formatter flow when onboarding teammates.
- Switch to “Minify” to generate compact JSON for query strings or to save bandwidth.
- When parsing fails, inspect the status badge and error message to spot missing commas or quotes.
Everything runs locally in your browser, so you can safely format payloads that contain sensitive fields.