JSON Viewer
Use this free online JSON Viewer to view JSON as a collapsible tree with types, counts and paths. It works instantly in your browser, and your data never leaves your device.
About the JSON Viewer
Large API responses are hard to scan as text. A JSON viewer turns the document into an interactive tree where you can expand and collapse objects, see the data type of every value and copy the path of any key.
Also known as: json viewer online, json tree viewer, view json, json parser online.
How to use the JSON Viewer
- Paste or type your code into the editor, or click Upload to open a file.
- The preview renders live as you type.
- Use Copy or Download to save your work.
Features
- Free with no signup and no daily limits
- Private: runs entirely in your browser
- Works on mobile, tablet and desktop
- Upload files and download results
- Live results as you type, with clear error messages
- Clean, fast interface with no popups
Frequently asked questions
Is the JSON Viewer free to use?
Yes. The JSON Viewer is completely free with no signup, no limits on normal use and no watermark.
Is my data safe?
Yes. Everything is processed by JavaScript inside your own browser. Your text is never uploaded to our server or stored anywhere.
Why does it say my JSON is invalid?
The most common reasons are single quotes instead of double quotes, a trailing comma after the last item, keys without quotes, or comments. The error message shows the exact line and column so you can fix it quickly.
Can I upload a JSON file?
Yes. Click Upload to open a .json or .txt file from your device, or paste the content directly. You can download the result as a file.
What else is this tool called?
People also search for it as json viewer online, json tree viewer, view json, json parser online. It is the same free tool.