Paste any JSON and instantly beautify it with clean indentation. Perfect for debugging, code reviews and making minified JSON readable.
100% Local
How to Use the JSON Formatter
Paste your raw or minified JSON into the input box on the left. Click the Format JSON button and the pretty-printed version appears on the right. Use Clear to reset both panels.
What the formatter does
Applies 2-space indentation for readability
Adds newlines between every key-value pair
Quotes all string values and escapes special characters
Sorts nothing — preserves your original key order
Features
Instant formatting as you click — no wait, no upload
Detects and reports JSON syntax errors with clear messages
Handles nested objects and arrays of any depth
Works with large JSON payloads without performance issues
All processing runs locally in your browser. Your data is not uploaded to any server.