How to use JSON Object Viewer
- Start by adding the JSON you want to process into JSON Object Viewer.
- Tune the Expand control before you process.
- Watch the output update instantly while you adjust the JSON.
- Use Copy to keep or reuse the result.
About this tool
Everything JSON Object Viewer does happens on your own device. JSON Object Viewer validates and reshapes your JSON locally with no server round-trip.
Clear error positions help you find a stray comma or bracket quickly. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
How do I use JSON Object Viewer?
JSON Object Viewer lets you process your input right in the browser using the Expand control, with the result shown instantly and nothing uploaded.
Do I need an account for JSON Object Viewer?
No — JSON Object Viewer needs no account, sign-up or installation.
Where is my data processed by JSON Object Viewer?
Entirely in your browser — JSON Object Viewer keeps your data on your own machine and sends nothing anywhere.
Can JSON Object Viewer handle large or deeply nested JSON?
Yes. JSON Object Viewer parses JSON entirely in your browser, so large or nested documents stay on your device and never upload.
Can I use JSON Object Viewer without a connection?
Yes — after the first load JSON Object Viewer runs entirely offline.