API Response Viewer
// Format and analyze API responses
Paste an API response above
Supports JSON, XML, HTML, and plain text
#About API Response Viewer
Free online API response viewer. Paste JSON or XML API responses to get formatted output with structure analysis, data type summary, and size information. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
What formats are supported? ▾
The viewer auto-detects JSON, XML, and plain text responses. JSON and XML are formatted with proper indentation, and structure analysis is provided for JSON responses.
What analysis is provided? ▾
For JSON responses, the viewer shows data size, nesting depth, key count, array lengths, and a data type breakdown (counts of strings, numbers, booleans, nulls, objects, and arrays).
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/api-response-viewer" width="100%" height="500" frameborder="0" title="API Response Viewer"></iframe>