The zero-knowledge password manager built for developers

What is a password manager?

A password manager is an encrypted vault that stores every login you use, generates strong unique passwords for each site, and fills them automatically when you sign in. The good ones — like PassCryp — never see your master password and cannot decrypt your data, even if their servers are compromised. That is the entire point: a single strong password unlocks a vault no one else can read.

In 2026, every credible password manager uses end-to-end encryption. The differences are in the cryptography (AES-256-GCM with Argon2id is the modern standard), the trust model (zero-knowledge means the provider literally cannot read your vault), and the breadth of what you can store. PassCryp covers passwords, secure notes, credit cards, TOTP 2FA codes, and developer credentials like API keys and SSH keys.

Why PassCryp is different

Most password managers were designed before API keys, .env files, and Stripe webhooks existed. They treat secrets as a long list of website logins. PassCryp adds first-class storage for the credentials developers actually deal with: AWS access keys with expiry alerts, GitHub PATs, OpenAI API keys, database connection strings, and SSH private keys — all in the same zero-knowledge vault as your normal logins.

Underneath, the crypto stack is current: AES-256-GCM (authenticated encryption, hardware-accelerated) with Argon2id key derivation (memory-hard, resists GPU and ASIC brute force). The browser extension is open source, the security model is documented in a public whitepaper, and every dependency that touches cryptography is pinned and reviewed.

How to choose a password manager

Check four things. First, the encryption: AES-256-GCM with Argon2id or scrypt is the 2026 standard; PBKDF2 is legacy and brute-forces faster offline. Second, the trust model: a true zero-knowledge manager cannot read your vault — confirm this in the security docs, not just the marketing. Third, the device count and feature gating on the free plan: many "free" managers cripple sync; PassCryp does not. Fourth, the import story: you should be able to migrate from your current tool in under five minutes.