Free tools
No-login short-link tools: UTM link builder, URL checker / safety, QR generator.
UTM Link Builder | Free GA4 UTM Tracking Tool
Free UTM link builder: enter a URL plus source/medium/campaign to generate a UTM-tagged tracking link instantly and copy it. No login. Shorten with 連 and keep GA4 tracking.
Short URL Expander & Safe-Link Checker — See Where a Link Goes
Free short URL expander and safe-link checker: paste any short link, follow its redirects, and see the real destination before you click. No login required.
Free QR Code Generator
Turn any URL into a downloadable QR code with the tool above, free. Point it at a 連 short link to make it dynamic: re-point it later, plus scan analytics.