A curated list of free courses with certifications. Also available at https://free-certifications.com/

Master programming by recreating your favorite technologies from scratch.

ip to location database by ASN, GeoFeed, Whois, iptoasn.com, db-ip lite, GeoLite2

Generate prime numbers from pictures!

The idea behind this project is to learn how different websites are made by directly cloning them using the same layout and design . New contributors can ad more websites to the list and suggest ne…

A ncurses animation to make decryption look like, well, decryption.

Based on a true story

A collective list of free APIs

Celebrate more with this lightweight confetti particle system 🎊

Cryptography Android application code samples / cipher collection for app users