Fetch, inspect, and view API responses with automatic JSON/XML formatting
API Viewer is a tool that allows you to fetch, inspect, and view API responses in a readable format. It automatically detects the response format (JSON, XML, or text) and applies appropriate formatting and syntax highlighting. Our API viewer helps you:
Fetch API responses instantly with just a URL. No complex setup or configuration required.
Automatically detects JSON, XML, or text responses and applies appropriate formatting and syntax highlighting.
Beautiful syntax highlighting makes it easy to read and understand API response structures.
View responses in a read-only editor to prevent accidental modifications while examining data.
Completely free to use with no registration required. Fast response times for quick API testing.
Works entirely in your browser. No server-side processing, no data storage, complete privacy.
Enter or paste the API endpoint URL you want to test. You can use the sample button to load a test API URL.
Click the "Fetch" button to retrieve the API response. The tool will automatically detect the response format.
The API response appears in a formatted editor with syntax highlighting for easy reading and analysis.
Yes, our API viewer is completely free to use. No registration, no payment, no limitations on usage.
You can fetch any publicly accessible API endpoint. Private APIs requiring authentication may not work unless they're publicly accessible from your browser.
No! All API calls are made directly from your browser. We don't store, log, or track any API URLs or responses.
Our API viewer supports JSON, XML, and plain text responses. The format is automatically detected from the response Content-Type header.
API endpoints that have CORS restrictions may not be accessible directly from the browser. You may need to use a CORS proxy or make requests from your own server.