Web Inspector & HTTP Tools
Browser device info, user-agent parser, HTTP status codes reference, MIME types lookup, Basic Auth header generator, Open Graph meta tags generator, and keycode inspector.
How to Use the Web Inspector & HTTP Tools
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Frequently Asked Questions
What tools are included?
Seven tools: device info display, user-agent string parser, HTTP status codes reference, MIME types lookup, Basic Auth header generator, Open Graph meta tags generator, and keycode inspector.
How does the user-agent parser work?
Parses your browser's user-agent string to extract browser name/version, OS, device type, and rendering engine. Displays structured data from the raw user-agent.
Can I generate Basic Auth headers?
Yes. Enter a username and password to generate the Base64-encoded Authorization header value. Copy the complete header for use in API requests.
Does it show my browser info?
Yes. The device info tool displays your current browser, OS, screen resolution, color depth, language, and connection details.
Is any data sent to a server?
No. All tools run locally in your browser. Device info and user-agent data stay in your browser and are not transmitted.
Which status codes does the reference distinguish?
408 Request Timeout (server waited too long for the request) versus 504 Gateway Timeout (upstream server timed out), plus 413 Payload Too Large, 429 Too Many Requests and 451 Unavailable For Legal Reasons. The MIME table maps extensions like .wasm to application/wasm, .avif to image/avif and .md to text/markdown.
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Last updated October 2026