Paperback - A simple and beautiful way to read Pinboard articles later
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.
Stash.ai - AI-powered, cross-device bookmarking
Lessn More - Lessn More is a fork of Lessn with support for more types of short URLs than Lessn supported;...
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Polr - An open source URL shortener. A great non-profit and free alternative to bit.ly, TinyURL, or goo.gl.