Wayback Machine archives information available on the WWW (World Wide Web). It is widely used by researchers and historians to preserve digital artifacts. However, Wayback Machine has some limitations like it is very slow and unresponsive on many crawlable websites.
Here is a curated list of Top applications that are capable of replacing Wayback Machine. The list contains both open source(free) and commercial(paid) software
Perma.cc is a web archiving app developed and maintained by the Harvard Law School Library. It helps you to create permanent records of the websites.
Link: https://perma.cc/
PageFreezer is a SaaS service that provides blogs, websites, and social media archiving. It helps financial services firms and enterprises to capture online conversations, ensures to monitor risk.
UK Web Archive collects details of numerous sites each year and preserves for the future. It is one of the best Web Archive Sites that focuses on subject, event or areas of interest, and social media to archive.
Link: https://www.webarchive.org.uk/ukwa/
Memento time travel helps you to search and view versions of webpages that existed in the past. It is one of the best website archive sites that supports finding Mementos in web archives.
Link: http://timetravel.mementoweb.org/