1 Best Open Source LastPass Alternatives

LastPass is a password manager that stores logins, secure notes, and payment details in an encrypted vault, with browser extensions and mobile apps that autofill credentials across sites and devices. It offers free and paid tiers, with paid plans adding features like dark web monitoring and priority support.

People look for open-source alternatives to LastPass largely because of past security incidents, including breaches that exposed encrypted vault data, which pushed many users to reconsider trusting a single closed-source vendor with their passwords. Others want a password manager they can self-host and inspect, or want to avoid subscription costs for premium features.

Vaultwarden is the common self-hosted replacement in this category. It is a lightweight, independently developed reimplementation of the Bitwarden server API, which means it works with the official Bitwarden browser extensions and mobile apps rather than LastPass's own client software. Switching from LastPass to Vaultwarden means both changing your password manager's client apps and moving your vault to infrastructure you run yourself.

Before switching, export your LastPass vault in its standard export format and confirm it imports cleanly into the Bitwarden client connected to your new Vaultwarden server, checking that folders, notes, and payment entries all carry over correctly. Set up HTTPS and regular backups for your self-hosted server, since you are now responsible for the vault's availability and durability. Also update saved logins across your devices' browser extensions, since switching password managers requires reinstalling and reconfiguring the client on each device you use. Give yourself time to update autofill settings on each browser and phone, since old saved credentials from LastPass can otherwise conflict with the new extension.