Best Password Manager
Best Open-Source Password Manager
Open-source password managers let independent researchers inspect the actual code protecting your data, rather than trusting a company's word alone.
Selection criteria: We only rank a manager here if its client and/or server code is publicly published under an open-source license.
Bitwarden
The only fully open-source option in our full lineup — client and server code are both public, with regular independent audits and an official self-hosting path.
Read the full review →Frequently asked questions
Why does open-source matter for a password manager?
It lets independent security researchers verify there are no hidden backdoors or flaws in the encryption implementation, rather than relying purely on the vendor's claims.
Is open-source software automatically more secure?
Not automatically — but combined with regular independent audits (as Bitwarden has), it adds a meaningful layer of verifiable trust.
Can I run my own server?
Yes, Bitwarden officially supports self-hosting for organizations or individuals who want full control over where vault data lives.