Heritrix3
@ https://github.com/internetarchive/heritrix3
Heritrix is the Internet Archive's open-source, extensible, web-scale, archival-quality web crawler project.
Webrecorder
@ https://webrecorder.net/
A suite of open source tools and packages to capture interactive websites and replay them at a later time as accurately as possible.
HTTrack
@ https://www.httrack.com/
Allows you to download a World Wide Web site from the Internet to a local directory.
wget
@ https://www.gnu.org/software/wget/
Retrieves files using HTTP, follows links, maps links to resources in filesystem, useful for archiving and mirroring web resources.