
GNU Wget
HTTrack
SiteSucker
WebCopy
ScrapBook
Web ScrapBook
Offline Explorer
ArchiveBox
Digital
Logisim
BOOLR
CircuitVerse.org
Wired Logic
Logisim Evolution
Hradla
Direct Mail
DigitalHTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
Logisim - Logisim is an educational tool for designing and simulating digital logic circuits.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.
BOOLR - Open-source digital logic simulator
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
CircuitVerse.org - CircuitVerse is an online community driven platform to design and simulate digital logic circuits.