This is the one category on the register where 'buildable in a weekend' is a warning label, not a recommendation. Password managers are a security product first and a CRUD app a distant second — get the cryptography wrong and you don't have a bug, you have every password you own exposed.
VIBE SCORE 72/100
The parts this build actually needs, each rated on its own — the average is the Vibe Score above.
| User login | 92 |
| CRUD database | 95 |
| End-to-end encryption | 28 |
Don't feel like building it? These are already made, open-source, and free.
Just pay. This is the one category on the register where 'buildable in a weekend' is a warning label, not a recommendation. Password managers are a security product first and a CRUD app a distant second — get the cryptography wrong and you don't have a bug, you have every password you own exposed.
1Password costs $2.99/mo (about $36/yr) as of 2026-08. That's what a working rebuild would save you.
Zero-knowledge sync across devices — encrypting client-side so even the server never sees your data — is exactly the kind of thing that looks simple and isn't; established libraries exist for good reason Security auditing, bug bounties, and a decade of hardening against real attackers is infrastructure you can't build over a weekend The blast radius of a mistake here is total: every account you own, at once
Yes — Bitwarden, KeePassXC are open-source options worth trying before you build your own. Details are in the standard parts section on this sheet.