HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
GrowthHackList - 100+ curated growth hacks for makers + early stage startups
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.
Growth Hack World - Together We Rise
GNU Wget - GNU Wget is a free software package for retrieving files using HTTP(S) and FTP, the most...
Grow my SaaS - Database of 150+ growth and conversion strategies