Everything 1Password does, but free and open source. Your passwords are encrypted locally before being synced to the cloud, so even if Bitwarden gets hacked, attackers get useless encrypted blobs. Free tier has no real limitations - unlimited passwords, unlimited devices. Premium at $1/month adds TOTP authenticator and advanced 2FA. You can even self-host the entire thing on your own server if you trust nobody. The objectively best free password manager that exists.