
Bitwarden
Open-source, audited password manager with a genuinely usable free tier.
A password manager is the single biggest upgrade most people can make to their online security: it lets you use a long, unique password for every account without having to remember any of them. The trade-off is trust, you are putting every login in one vault so how that vault is encrypted, who can see it, and who owns the company behind it are all worth weighing. The good news is that the strongest options are end-to-end encrypted so the provider never sees your passwords and several are open source and independently audited.
Start with the encryption model: you want end-to-end (zero-knowledge) encryption so your data is scrambled on your device with a key only you hold and the company never sees your passwords in the clear. Next decide between cloud-synced convenience (Bitwarden, Proton Pass, 1Password) and fully local storage you control yourself (the KeePass family or a self-hosted tool like Psono). Prefer open-source apps whose code anyone can inspect and look for a recent independent security audit rather than taking marketing claims at face value. Finally, check that the tool supports strong two-factor authentication on the vault itself, covers the devices you actually use, and comes from a company in a jurisdiction you're comfortable with.
Here are some things to look for.

Open-source, audited password manager with a genuinely usable free tier.

Open-source, Swiss-based password manager with built-in email aliases.

Free, local, open-source vault that keeps your passwords entirely on your own machine.

Polished, closed-source manager with a strong dual-key security model.

Self-hostable, open-source password manager built for teams.

Open-source KeePass client for iPhone and Mac.

Free, open-source KeePass password manager for Android.