Skillsz is described as 'Pre-employment talent screening, assessment, and shortlisting platform enabling tech companies to measure developers’ skills online and hire the most promising developers' and is an website. There are more than 10 alternatives to Skillsz, not only websites but also apps for a variety of platforms, including SaaS, Mac, Windows and Chrome OS apps. The best Skillsz alternative is HackerRank. It's not free, so if you're looking for a free alternative, you could try HackerRank or Remoteinterview. Other great sites and apps similar to Skillsz are iMocha, UAssess, Evalart and HireMee PRO.