What is the best open-source alternative to 1Password?

The best open-source alternative to 1Password depends on the use case. The highest-PopScore candidates on GitPop are vaultwarden, server.

Is 1Password open source?

No, 1Password is a closed-source product by AgileBits, Inc.. The open-source alternatives on this page are listed by GitPop PopScore (momentum, activity, and noise-filtered).

2 candidates

Open source alternatives to 1Password

Team password manager with vaults, sharing, and audit logs. · AgileBits, Inc.

Pricing: Teams from $3.99/user/mo; Business from $7.99/user/mo

1Password and LastPass are the default team password managers. The leading open-source self-hosted alternative in 2026 is Vaultwarden (a community-maintained Bitwarden server). Bitwarden is the most direct 1Password replacement with full client support; Vaultwarden is the right pick for self-hosters who want a tiny Rust-based server.

The 2 candidates, ranked by PopScore

#01dani-garcia/vaultwarden
Community-maintained Bitwarden-compatible server in Rust. The most direct 1Password replacement for self-hosters, with a tiny footprint.
GitHub
#02bitwarden/server
Official Bitwarden server. The right pick when you want a vendor-supported open-source password manager.
GitHub

Related alternatives

Looking for a side-by-side comparison of two open-source projects? The compare matrix has 60+ "X vs Y" pages. Looking for a curated "best of" list for a specific category? See Best AI tools 2026 (and the 7 other category editions).