Features
Real-time Validation
Instantly detect JSON errors with precise line numbers and clear error messages.
Format & Beautify
Pretty-print JSON with configurable indentation (2/4/8 spaces or tabs).
Minify JSON
Compress JSON to single-line format for smaller file sizes.
Tree View
Navigate complex JSON structures with expandable/collapsible tree view.
Multi-format Export
Convert JSON to YAML, XML, CSV, or plain text instantly.
One-click Copy
Copy formatted JSON to clipboard with a single click.
Drag & Drop
Upload JSON files by dragging and dropping directly into the editor.
100% Private
All processing happens in your browser. Your JSON data never leaves your device.
Frequently Asked Questions
Is my JSON data stored or sent anywhere?
No. All JSON processing happens entirely in your browser using JavaScript. Your data never leaves your device and is never stored or logged.
What is the maximum JSON file size supported?
JsonFlow can handle JSON files up to 10MB. For optimal performance, we recommend keeping files under 5MB for instant formatting and validation.
Can I use JsonFlow offline?
Yes. Once the page is loaded, JsonFlow works completely offline. All formatting, validation, and conversion features are available without an internet connection.
What formats can I convert JSON to?
You can convert JSON to YAML, XML, CSV (for arrays or objects), and plain text format. Each conversion maintains the data structure appropriately.
How do I fix invalid JSON?
When JSON is invalid, the error message shows the line number and issue. Common fixes include adding missing commas, closing brackets, or quoting keys properly.
Can I customize the indentation?
Yes. You can choose from 2 spaces, 4 spaces, 8 spaces, or tabs for indentation when formatting your JSON.