URL Shortener Preview

The URL Shortener Preview is a client-side tool that analyzes shortened URLs and displays their structural components. When you paste a URL (from a link shortener like bit.ly, tinyurl.com, or t.co), the tool parses it using the URL API and displays the hostname, path, and full URL. The tool does not follow redirects (which would require a network request), but it shows the URL structure to help you understand where the short link points at the domain level. This is useful for quickly checking whether a shortened URL points to a known, trusted domain before clicking it — a basic security practice when receiving links from unknown sources. The tool also handles malformed URLs gracefully, displaying an error for invalid input.

Shortened URLs hide their destination, which is convenient for sharing but creates a security concern: you cannot tell where the link leads without clicking it. The URL Shortener Preview lets you inspect the URL structure without following the redirect, helping you verify that the link points to a known domain. This is especially important when receiving links in emails, messaging apps, or social media, where phishing attacks often use shortened URLs to disguise malicious destinations.

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.

Why can't it show the final destination URL?

<p>Following redirects would require making an HTTP request to the shortened URL, which violates the tool's client-side-only constraint. The tool only parses the URL you provide.</p>

Does it work with all URL shorteners?

<p>It works with any valid URL, regardless of whether it is shortened. The tool parses the structure — it does not distinguish between shorteners and regular URLs.</p>

Can I check if a URL is safe?

<p>The tool shows the hostname for your assessment. For automated safety checking, use a URL reputation service like Google Safe Browsing or VirusTotal.</p>

Is it safe to paste shortened URLs here?

<p>Yes. The tool only parses the URL string locally in your browser — it does not make any network requests to the URL or any third-party service.</p>

Can I preview URLs from any source?

<p>The tool works with any valid URL, not just shortened ones. Paste a full URL to see its hostname and path structure.</p>

What about URLs with authentication?

<p>The tool displays the hostname and path only. Credentials in the URL (user:pass@host) are not displayed for security, but the URL is parsed correctly.</p>

Can I check if a short URL has expired?

<p>No. The tool only parses the URL structure. Checking expiration, availability, or redirect behavior would require a network request, which this client-side tool does not perform.</p>

What about URLs with tracking parameters?

<p>The tool displays the full URL including any query parameters and fragments. Tracking parameters (utm_source, fbclid, etc.) are visible in the output.</p>