Iterate - Get the feedback you need to build better products
Zagl - Zagl is an online tool that allows you to shorten your domain URL links and get paid with the engagements.
YOURLS - YOURLS is a website that contains all the tools you need to create and launch your very own URL shortener. URL shorteners like bitly or TinyURL are fine for public use, but they offer limited options in terms of URL customization.
Zapier URL Shortener - Zapier is an online platform that offers unique services related to URLs, including the shortening of URLs.
Bit.do - Bit.
Shlink - A self-hosted URL shortener