How to Format JSON Online
Format and beautify JSON online to make API responses, config files, and data easier to read and debug.
Why Format JSON?
Formatted JSON is easier to read, debug, copy, and share. Developers use JSON formatters for API responses, configuration files, logs, test data, and web app development.
How to Beautify JSON
Paste JSON into the formatter, click format, and review the structured output. If the JSON has an error, use a validator to find the broken syntax.
Common JSON Errors
Missing quotes, extra commas, wrong brackets, and unescaped characters are common JSON mistakes. Fix those errors before using the data in an app or API.
Related tools and guides
For the fastest result, open the related tool first and then use this guide to check settings, file format, quality, and common mistakes before downloading the final output.
You can also browse the full free online tools directory for PDF tools, image tools, text utilities, developer tools, calculators, and generators.