Open-source alternatives guide · Updated 2026

Best open-source alternatives to Proton Pass

Compare the best free and open-source alternatives to Proton Pass — 5 verified projects with explicit catalog relationships. Inspect licenses, GitHub activity, self-hosting signals, and migration fit before you switch.

5verified alternatives
1self-hosted signals
2categories

Only explicit alternative relationships are shown—never inferred competitor claims.

Overview

This guide compares 5 verified open-source alternatives to Proton Pass, including KeePassXC, Bitwarden, Passbolt, and Padloc.

Projects appear across Security & Privacy and Data & Analytics. 1 option includes a self-hosting signal — see the self-hosted catalog. Ranking follows public GitHub stars and recorded momentum—not vendor marketing. Compare projects side by side, then confirm license fit, migration effort, and operational ownership before adopting any option.

Strongest repository-activity signal: KeePassXC · Jump to ranking · 28K stars

About Proton Pass

Proprietary product with documented open-source alternatives cataloged on OpenSourceChoice. Compare licenses, repository activity, and self-hosting options befo

Ranked open-source alternatives to Proton Pass

Compare capabilities, licensing, and ownership model. Stars help with discovery; they are not a security or product-fit guarantee.

KeePassXC

Open-source alternative to Proton Pass

GermanySecurity & PrivacyLicense not declared

KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.

KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”. Review the official repository, license, release activity, and deployment do

Best for: Security teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 5 days ago

Key capabilities

Bitwarden

Open-source alternative to Proton Pass

United StatesData & AnalyticsLicense not declaredSelf-hosted

Bitwarden infrastructure/backend (API, database, Docker, etc).

Bitwarden infrastructure/backend (API, database, Docker, etc). Review the official repository, license, release activity, and deployment documentation before production adoption.

Best for: Data teams
Deployment: Self-hostable
License: License not declared
Activity: Updated 26 hours ago

Key capabilities

docker

api

sql

csharp

Passbolt

Open-source alternative to Proton Pass

LuxembourgSecurity & PrivacyAGPL-3.0

Passbolt Community Edition (CE) API. The JSON API for the open source password manager for teams!

Passbolt Community Edition (CE) API. The JSON API for the open source password manager for teams! Review the official repository, license, release activity, and deployment document

Best for: Security teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 31 hours ago

Key capabilities

php

security

productivity password

Padloc

Open-source alternative to Proton Pass

AustriaSecurity & PrivacyAGPL-3.0

A modern, open source password manager for individuals and teams.

A modern, open source password manager for individuals and teams. Review the official repository, license, release activity, and deployment documentation before production adoption

Best for: Security teams
Deployment: Inspectable source
License: AGPL-3.0
Activity: Updated 1 year ago

Key capabilities

typescript

javascript

tauri pwa

PearPass

Open-source alternative to Proton Pass

Security & PrivacyLicense not declared

PearPass is an open-source, privacy-first password manager with peer-to-peer syncing and end-to-end encryption.

PearPass is an open-source, privacy-first password manager with peer-to-peer syncing and end-to-end encryption. Review the official repository, license, release activity, and deplo

Best for: Security teams
Deployment: Inspectable source
License: License not declared
Activity: Updated 28 days ago

Key capabilities

TypeScript

Github Actions

JavaScript

How to choose a Proton Pass alternative

Map must-have capabilitiesList the workflows in Proton Pass you cannot drop during migration.

Verify the licenseConfirm it fits your use, distribution, and compliance model. Browse license briefs.

Run a proof of conceptTest real data, integrations, clients, and failure modes. Use Compare for side-by-side checks.

Plan ownershipAssess upgrades, backups, support, and an exit path. Read when self-hosting is worth it.

Frequently asked questions about Proton Pass alternatives

What are the best open-source alternatives to Proton Pass?

OpenSourceChoice currently lists 5 projects with an explicit alternative relationship to Proton Pass. Catalog highlights include KeePassXC, Bitwarden, and Passbolt. Rankings follow public GitHub stars and recorded momentum—not paid placement. Match capabilities and license fit to your workflow before adopting any option.

Are open-source alternatives to Proton Pass free?

Most catalogued alternatives publish source under OSI or source-available licenses and are free to inspect. Hosting, commercial support, or cloud model APIs may still cost money. Always read the project license for your use case.

Can I self-host an alternative to Proton Pass?

1 option in this list carry a self-hosting signal. Confirm the official install guide, backups, upgrades, and hardening steps before production.

How should I evaluate Proton Pass alternatives?

Map must-have Proton Pass workflows, verify license and compliance fit, run a proof of concept with real data and integrations, then plan ownership for upgrades, backups, support, and an exit path.