Can I open-source Proton Pass Plus?
YES · mature open-source replacementYes. Vaultwarden (45k stars), Keycloak (28k stars), Passbolt (5k stars) are mature open-source replacements for Proton Pass Plus — self-host in one command and stop paying $2.99/mo.
People still pay for Proton Pass Plus because security products are paid for because expert review, infrastructure, and accountability matter more than recreating screens. The recurring cost buys cryptography, secure updates, key recovery, threat intelligence, relay capacity, abuse response, audits, and incident handling, not just the visible interface.
xProton identity, email alias infrastructure, audits, apps, recovery, and privacy operations
xindependent security audits
xglobal relay infrastructure
xbreach monitoring data
xaccount recovery and support
These projects already replace it, free.
AAliasVaultPasswords, passkeys, aliases, and encrypted backups on your server; reliable mail delivery is now infrastructure.open source↗VVaultwardenLightweight Bitwarden-compatible password server — the official apps work with your own backend.open source↗KKeycloakBattle-tested identity and access management server with SSO, OIDC/SAML, federation, and admin consoleopen source↗What each one is, in full: Vaultwarden · Keycloak
all 4 open-source alternatives to Proton Pass Plus →· no votes, no pay-to-list · just what's real
Proton Pass Plus pricing
| plan | monthly | annual (per mo) | what you get |
|---|---|---|---|
| pass free | $0/user | $0/user | Unlimited logins, notes, cards and devices; 10 hide-my-email aliases; 5 GB Proton Drive storage |
| pass plus | — | $2.99/user | Unlimited hide-my-email aliases, custom domains/mailboxes, integrated 2FA, sharing, dark-web monitoring and up to 50 vaults |
| pass family | custom | — | Up to 6 Pass Plus accounts |
free tierUnlimited logins, notes, cards and devices; 10 hide-my-email aliases; 5 GB cloud storage
billingFree + monthly/annual paid options; exact monthly and Family USD prices were not exposed reliably
hidden costsPaid alias/custom-domain use can depend on external domain registration; subscriptions auto-renew, taxes can apply, and Proton Unlimited is a separate bundle if mail, VPN and larger storage are also needed
price historyPass Plus annual monthly equivalent: $1.99 → $2.99 (2024-11)
verified 2026-08-14 · source ↗
Can I open-source Proton Pass Plus?
Yes. AliasVault replaces Proton Pass Plus today — self-host it on your own server or machine with no subscription. The full list of open-source alternatives is on this page.
How much does Proton Pass Plus cost?
Proton Pass Plus costs about $2.99/month (Pass Plus, checked 2026-08-14), which is $35.88 per year. That's what you save by replacing it with open source.
What do I lose by replacing Proton Pass Plus?
Honestly: Proton identity, email alias infrastructure, audits, apps, recovery, and privacy operations; independent security audits; global relay infrastructure; breach monitoring data; account recovery and support. If any of those are load-bearing for you, keep paying.
Is there an open-source alternative to Proton Pass Plus?
Yes: AliasVault (Passwords, passkeys, aliases, and encrypted backups on your server; reliable mail delivery is now infrastructure.) Vaultwarden (Lightweight Bitwarden-compatible password server — the official apps work with your own backend.) Keycloak (Battle-tested identity and access management server with SSO, OIDC/SAML, federation, and admin console) All 4 curated open-source alternatives are at caniopensourceit.online/proton-pass-plus/alternatives.