JSON Pretty Print
JSON Pretty Print — Beautify JSON Online Free
What is JSON Pretty Print?
Pretty print JSON with consistent indentation. Make minified JSON readable in one click.
JSON Pretty Print transforms minified or compressed JSON into a human-readable format with 2-space indentation and line breaks. Paste any valid JSON—whether from an API, log file, or config—and get clean output instantly. The tool preserves all data and structure while improving readability. Perfect for development and debugging. All processing is client-side.
How to Use JSON Pretty Print
- Paste or type your input into the editor on the left panel.
- Results update automatically while you type. You can also press Ctrl+Enter to force a refresh.
- View the result in the output panel on the right with full syntax highlighting.
- Use Copy or Download to export the result.
- Drag and drop
.jsonor.txtfiles directly into the editor. - Toggle Tree View for an interactive, collapsible view of the JSON structure.
Example
Input:
{"a":1,"b":[2,3],"c":{"d":4}}Output:
{
"a": 1,
"b": [2, 3],
"c": {
"d": 4
}
}Common Use Cases
- Read API responses
- Edit config files
- Debug JSON data
Pretty Print vs Minified
Common Errors
- Invalid JSON
- Trailing commas
- Unquoted keys
Why Use Our JSON Pretty Print?
- 100% client-side — your data never leaves your browser. No server processing, no data collection.
- No sign-up required — start using the tool instantly with no registration or installation.
- Keyboard shortcuts — press Ctrl+Enter to run, ? for shortcuts list, Ctrl+B to toggle sidebar.
- Persistent state — your input is automatically saved across sessions using local storage.
- IDE-style interface — Monaco Editor (the engine behind VS Code) with syntax highlighting and error detection.
- Multi-format conversion — convert between JSON, XML, CSV, and YAML without switching tools.
Frequently Asked Questions
What is pretty print JSON?
Pretty printing adds indentation and line breaks to JSON so it is easy to read and edit.
What indentation does it use?
2 spaces per nesting level, which is a common standard.
Does it change my data?
No. Only whitespace is added. Data and structure remain identical.
Can I pretty print invalid JSON?
No. Fix syntax errors first with our JSON Validator.
Is it free?
Yes. Free, no sign-up, runs entirely in your browser.
Try JSON Pretty Print Now
Paste your data into the editor above for instant processing. Use Ctrl+Enter anytime to re-run quickly.