// security tool
URL Shortener & Expander
Shorten long URLs or safely expand shortened ones to reveal the full redirect chain before you click.
Expand & Trace URLs
Enter any shortened URL to reveal the full redirect chain including JavaScript redirects.
URLs are not stored or logged
Redirect Chain
Smart Expansion
Works with all shorteners — t.co, bit.ly, tinyurl.com. Detects HTTP, meta refresh, and JS redirects.
Multiple Shorteners
Auto-fallback between TinyURL, Is.gd, Os.db and others for reliable shortening.
Domain Analysis
See all domains in the redirect chain and identify which ones are URL shorteners.
To Expand a URL
- Select "Expand URL" mode
- Paste any shortened URL
- Click Expand to trace the full redirect chain
- Review all bounces and the final destination
To Shorten a URL
- Select "Shorten URL" mode
- Paste your long URL (include https://)
- Click Shorten and get your short link
- Copy and share the shortened URL
Frequently Asked Questions
Twitter's t.co shortener uses JavaScript redirects that simple expanders can't follow. Our tool detects HTTP redirects, meta refresh tags, AND JavaScript-based redirects to successfully expand all t.co links and modern shorteners.
We use multiple shortening services with automatic fallback — TinyURL, Is.gd, Os.db, and others. If one fails, we automatically try the next to ensure your URL gets shortened.
Three types: HTTP redirects (301, 302, 303, 307, 308), meta refresh redirects, and JavaScript-based redirects (window.location, document.location, location.replace, etc.).
Up to 15 consecutive redirects, covering virtually all legitimate URL shorteners and most redirect chains. We also include protection against redirect loops.
