Bitwarden vs Proton Pass: Battle of Open-Source Password Managers

Last updated: October 27, 2025 | 8 min read

Bitwarden and Proton Pass are both open-source password managers, which already puts them ahead of closed-source competitors. But being open source doesn't automatically make them equal. Let's compare these two transparent password managers on jurisdiction, features, ecosystem, and which one better protects your passwords.

This is a rare comparison where both options are genuinely good. The choice comes down to your specific priorities and whether you value Bitwarden's maturity or Proton's privacy ecosystem.

Open Source: The Common Ground

Both Bitwarden and Proton Pass have fully open-source code available on GitHub. This is huge for security. Instead of trusting marketing claims, anyone can audit the code to verify encryption is implemented correctly and there are no backdoors.

Both have been independently audited by third-party security firms. Bitwarden by Cure53, and Proton Pass also by Cure53. The audits found no critical issues, validating that their open-source implementations are sound.

Jurisdiction Differences

Bitwarden: United States

Bitwarden is based in the United States. While their end-to-end encryption means they can't access your passwords even if compelled, the US jurisdiction has some privacy concerns. The US is part of the Five Eyes surveillance alliance and has laws like FISA and the CLOUD Act that can require data disclosure.

That said, Bitwarden's encryption architecture means there's no plaintext data to hand over. Still, some privacy advocates prefer to avoid US jurisdiction entirely.

Proton Pass: Switzerland

Proton Pass is based in Switzerland, which has some of the world's strongest privacy laws and constitutional privacy protections. Switzerland is outside the Five Eyes alliance and has a track record of resisting foreign surveillance requests.

For maximum privacy, Swiss jurisdiction is preferred. Combined with end-to-end encryption, it provides the strongest legal framework for protecting your data.

Feature Comparison

Feature Bitwarden Proton Pass
Free Plan ✅ Unlimited passwords ✅ Unlimited passwords
Open Source ✅ Yes ✅ Yes
Jurisdiction United States Switzerland
Self-Hosting ✅ Yes ❌ No
2FA Authenticator ✅ Yes (Premium) ✅ Yes (Plus)
Password Health ✅ Vault Health Reports ✅ Yes (Plus)
Email Aliases ❌ No ✅ Hide-my-email (Plus)
Emergency Access ✅ Yes (Premium) Coming soon

Self-Hosting: Bitwarden's Advantage

Bitwarden offers self-hosting, meaning you can run your own Bitwarden server on your infrastructure. This is perfect for organizations or individuals who want complete control over where their encrypted vaults are stored.

Proton Pass doesn't offer self-hosting. You must use Proton's servers in Switzerland. For most users this is fine, but some advanced users prefer the option to self-host.

The Proton Ecosystem Advantage

Proton Pass is part of a complete privacy ecosystem. When you get Proton Unlimited ($9.99/month), you also get Proton Mail, Proton Drive (3 TB), and Proton VPN. It's a complete privacy suite.

Bitwarden is standalone. While you can use it with other services, there's no integrated privacy ecosystem. For users wanting a comprehensive privacy solution, Proton's approach is compelling.

Pricing Comparison

Plan Bitwarden Proton Pass
Free Unlimited passwords Unlimited passwords
Premium $10/year ($0.83/month) $1.99/month ($23.88/year)
Family $40/year for 6 users ($6.67/year each) $9.99/month Unlimited (6 users + full Proton suite)

Bitwarden is significantly cheaper at $10/year vs Proton Pass's $23.88/year. However, Proton Pass Plus includes unlimited hide-my-email aliases, which Bitwarden doesn't offer. And Proton Unlimited includes Mail, Drive, and VPN, making it better value if you want the full ecosystem.

User Experience

Bitwarden has a more utilitarian interface. It works well but isn't particularly beautiful. The focus is on functionality over aesthetics.

Proton Pass has a more modern, polished interface. It feels contemporary and the UX is smooth. Both autofill reliably, but Proton Pass has a slightly more refined feel.

Maturity & Track Record

Bitwarden has been around since 2016 and is very mature. It has a large community, extensive documentation, and proven reliability over years of use.

Proton Pass launched in 2023, making it much newer. While it's built on Proton's established privacy infrastructure, the password manager itself is still relatively young.

Bitwarden Pros

  • Much cheaper ($10/year)
  • Self-hosting option
  • Very mature (since 2016)
  • Emergency Access
  • Large community

Bitwarden Cons

  • US jurisdiction
  • Utilitarian UI
  • No ecosystem integration
  • No email aliases

Proton Pass Pros

  • Swiss jurisdiction
  • Modern, polished UI
  • Hide-my-email aliases
  • Part of privacy ecosystem
  • Proton's privacy reputation

Proton Pass Cons

  • More expensive ($23.88/year)
  • Newer/less mature
  • No self-hosting
  • Smaller community
  • No Emergency Access yet

Who Should Choose Bitwarden?

Bitwarden is the better choice if you want the absolute cheapest open-source password manager, need self-hosting capabilities, or prefer mature software with a large community. At $10/year, it's incredibly affordable.

It's also ideal for users who don't mind US jurisdiction and just want a solid, functional password manager without extra features.

Who Should Choose Proton Pass?

Proton Pass is better if you prioritize Swiss jurisdiction, want a modern UI, or need hide-my-email aliases. It's especially compelling if you're interested in the full Proton ecosystem (Mail, Drive, VPN).

For privacy advocates who want everything in one place and are willing to pay slightly more for Swiss protection and a complete privacy suite, Proton Pass is the better choice.

Ready for Swiss-Protected Password Management?

Try Proton Pass free and experience password security from the privacy capital of the world.

Start Free Trial

Final Verdict

Both are excellent open-source password managers. You can't go wrong with either one.

Bitwarden wins on price and maturity. Proton Pass wins on jurisdiction and ecosystem integration.

If you want the cheapest, most mature open-source option and don't mind US jurisdiction, choose Bitwarden. If you prefer Swiss privacy protection, a modern UI, and the option to bundle with Mail/Drive/VPN, choose Proton Pass.

The good news? Both are open source, both are secure, and both are infinitely better than closed-source alternatives. You're making a smart choice either way.