Software Heritage is described as 'We collect and preserve software in source code form, because software embodies our technical and scientific knowledge and humanity cannot afford the risk of losing it' and is an website in the Online Services category. There are three alternatives to Software Heritage, not only websites but also apps for . The best alternative is Internet Archive, which is free. Other great sites and apps similar to Software Heritage are Linksoutside (Free) and WinWorld (Free).
The Internet Archive is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, it provides free access to researchers, historians, scholars, the print disabled, and the general public.