How I Built a Free Password Security Toolkit (And What I Learned)

The author built Password Giant, a free, fully client-side password toolkit that includes strength checking, generation, and entropy calculation—with nothing sent to a server. Key takeaways: true password security depends on entropy, length, and uniqueness rather than character-class rules; passphrases are underrated and NIST-recommended; and reused passwords pose a greater risk than weak ones.