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Cybersecurity · head to head

Passbolt vs Proton Mail

Passbolt logo

Passbolt

Cybersecurity

Open-source password manager for teams with self-hosted or cloud deployment

From
Free
Rated
-
Full reviewWebsite
Proton Mail logo

Proton Mail

Cybersecurity

Secure email that protects your privacy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Passbolt pro Edition requires a minimum of 10 users, making it costlier for very small teams.; Proton Mail paid plan pricing not displayed on vendor site
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Passbolt and Proton Mail actually diverge.

Attributes where Passbolt and Proton Mail differ
AttributePassboltProton Mail
Pricing modelopen-sourcefreemium
Platformsweb, windows, mac, linux, apiWeb

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cybersecurity).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Passbolt

  • Password sharing and folders
  • Groups and role-based access
  • Browser extensions and CLI
  • Open API
  • LDAP provisioning and SSO
  • Activity audit log

Only in Proton Mail

Nothing recorded that Passbolt does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Passbolt

  • Self-hosting a team password manager for data sovereigntynot Proton Mail
  • Provisioning vault access from an existing LDAP/AD directorynot Proton Mail
  • Sharing credentials across engineering or IT teams via folders and groupsnot Proton Mail
  • Automating credential retrieval through the CLI or open APInot Proton Mail

Proton Mail

  • Encrypted email communicationnot Passbolt
  • Privacy-focused email servicenot Passbolt
  • Family email protectionnot Passbolt

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Passbolt

  • Pro Edition requires a minimum of 10 users, making it costlier for very small teams.
  • Community Edition lacks SSO and LDAP provisioning, which many organizations need for onboarding at scale.
  • Self-hosting the Community Edition requires infrastructure and maintenance effort compared to fully managed competitors.
  • Enterprise-tier support and HA consulting require custom, quote-based pricing rather than transparent rates.

Proton Mail

  • Paid plan pricing not displayed on vendor site
  • Free tier limited to 1 GB storage
  • Free tier limited to single email address

Pricing, plan by plan

Passbolt

Free
  • Community EditionFree
    • Unlimited users
    • Password sharing and folders
    • Role-based access control
  • Pro Edition$4.9/month
    • Minimum 10 users, billed annually
    • LDAP/AD provisioning
    • Single sign-on
  • Enterprise Edition$undefined/month
    • High availability and disaster recovery consulting
    • White-glove migration
    • Custom feature development

Proton Mail

Free

No published plan breakdown. See the Proton Mail review.

Which should you pick?

Choose Passbolt if

  • You need password sharing and folders.
  • You want to start without paying.
  • You work on web, windows, mac, linux, api.
  • You also want groups and role-based access.
Passbolt review

Choose Proton Mail if

  • You want to start without paying.
Proton Mail review

Questions people ask

Is Passbolt or Proton Mail better?
Neither clearly leads. Passbolt starts at Free and Proton Mail at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Passbolt or Proton Mail?
Passbolt starts at Free and Proton Mail at Free.
Does Passbolt or Proton Mail run on more platforms?
Passbolt runs on web, windows, mac, linux, api. Proton Mail runs on Web.
Can I use Passbolt for free?
Both have a free tier, so you can try either at no cost before committing.
What is Passbolt best used for?
Passbolt is most often used for self-hosting a team password manager for data sovereignty, provisioning vault access from an existing ldap/ad directory, sharing credentials across engineering or it teams via folders and groups, automating credential retrieval through the cli or open api. Of those, self-hosting a team password manager for data sovereignty and provisioning vault access from an existing ldap/ad directory are not what Proton Mail is typically brought in for.
What can Passbolt do that Proton Mail cannot?
Passbolt covers Password sharing and folders, Groups and role-based access, Browser extensions and CLI, Open API.

Answered from the vendors’ own pages

Passbolt: Is Passbolt free to use?

Yes. The Community Edition is free forever with unlimited users, including password sharing, folders, groups, role-based access, browser extensions, a CLI, and an open API.

Source
Proton Mail: Is there a free version of Proton Mail?

Yes, Proton Mail offers a free plan with 1 GB storage, 1 encrypted email address, and basic features like folders, labels, and filters.

Source
Passbolt: What does the Pro Edition cost and add?

Pro Edition costs $4.90 per user per month billed annually, with a 10-user minimum, and adds LDAP/AD provisioning, single sign-on, account recovery escrow, activity audit logs, and next-business-day support.

Source
Proton Mail: What does the Mail Plus plan include?

Mail Plus includes 15 GB storage, 10 encrypted email addresses, support for 1 custom domain, 10 hide-my-email aliases, priority support, and access to Proton Calendar.

Source
Passbolt: What license is Passbolt distributed under?

All Passbolt editions, including Pro and Enterprise, are distributed under the AGPL v3 open-source license.

Source
Proton Mail: What is included in Proton Unlimited?

Proton Unlimited provides 500 GB storage, 15 email addresses, 3 custom domains, unlimited hide-my-email aliases, access to Mail, Calendar, VPN, Drive, and Pass, plus dedicated support.

Source
Proton Mail: Does Proton Mail offer a money-back guarantee?

Yes, Proton Mail provides a 30-day money-back guarantee for paid plans.

Source
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