Best open-source password manager
Password managers whose app code you can read, and in some cases run on your own server or as a local file.
What we looked at:Open-source appsOpen-source serverSelf-hosting or a local vault file
- 1
Bitwarden
Open-source apps and server, and you can host the server yourself. Cure53 audited the browser extension and autofill in 2025.
- Free plan
- Yes
- Personal, per year
- $19.80
- Family plan
- $47.88/yr
- Owner
- Bitwarden, Inc.
- Latest audit
- Cure53, 2025
- 2
KeePassXC
Open-source desktop app for Windows, macOS and Linux that keeps your vault in a local KeePass file. Nothing to host, nothing in a company's cloud.
- Free plan
- Yes
- Personal, per year
- None
- Family plan
- None listed
- Owner
- Open-source project
- Latest audit
- Zaur Molotnikov, 2023
- 3
Proton Pass
Open-source apps on every platform with a free plan. The server is closed, so you're trusting Proton's hosting, but the client-side encryption can be checked.
- Free plan
- Yes
- Personal, per year
- $35.88
- Family plan
- $59.88/yr
- Owner
- Proton AG
- Latest audit
- Recurity Labs, 2026
Worth knowing. Open source means the code can be inspected, not that someone has. Pair it with a published audit before treating it as proof.