Secure two-factor authentication app by Proton
Publisher’s description
What is Proton Authenticator?
Proton Authenticator is an open-source password manager program for Windows from Proton AG. It ranks 21st by popularity among password managers in this catalogue. It is written in Rust.
Installation and requirements
Official installers exist for 64-bit as MSI. The main installer is 17.4 MB. The installer supports unattended (silent) installation. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 1.1.6, released on June 8, 2026. 8 versions are listed since July 31, 2025, each with links to its own installer files.
Popularity and file types
The Chocolatey package has been downloaded 1,021 times. The source code on GitHub (protonpass/proton-pass-common) has 364 stars. Similar programs include Bitwarden, KeePassXC and Yubico Authenticator.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- MSI package for managed deployment
- Documented silent install
Cons
- No native ARM64 build
In short: Proton Authenticator is an open-source password manager tool for 64-bit PCs. Administrators can deploy it unattended.
Is Proton Authenticator safe to download?
- The file is served by proton.me, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
52E5C0B28BE769910FBBF24724F552ED4A75DD8571BE1004DCF6992FBA3A2CB5· Open the VirusTotal report for this hash - The link answered when we last checked it (October 22, 2026)
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 8 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 1.1.6Latest | June 8, 2026 | 17.4 MB | 64-bit MSI |
| 1.1.5 | May 12, 2026 | 17.0 MB | 64-bit MSI |
| 1.1.4 | September 15, 2025 | 16.6 MB | 64-bit MSI |
| 1.1.3 | September 8, 2025 | 16.6 MB | 64-bit MSI |
| 1.1.2 | September 5, 2025 | 16.6 MB | 64-bit MSI |
| 1.1.1 | September 3, 2025 | 16.6 MB | 64-bit MSI |
| 1.1.0 | September 2, 2025 | 16.6 MB | 64-bit MSI |
| 1.0.0 | July 31, 2025 | 16.4 MB | 64-bit MSI |
Install from the command line
Silent install ›winget install --id Proton.ProtonAuthenticator -echoco install protonauth -yscoop install extras/proton-authenticatormsiexec /i ProtonAuthenticator_1.1.6_x64_en-US.msi /qn /norestartmsiexec /x {4C66F929-9917-4BE6-932F-2DE9F0C30DAA} /qn /norestartRelated guide: How to use winget: install and update apps
Information
- Publisher
- Proton AG
- Category
- Password managers
- Licence
- GPL-3.0
- Price
- Free
- Source code
- github.com/protonpass/proton-pass-common
- Written in
- Rust
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 1.1.6
- Released
- June 8, 2026
- Added to the catalogue
- July 31, 2025
- Versions listed
- 8
- Chocolatey downloads
- 1,021
- GitHub stars
- 364
- GitHub forks
- 48
- Website
- proton.me
- winget ID
- Proton.ProtonAuthenticator
- Chocolatey package
- protonauth
- Scoop package
- extras/proton-authenticator
- MSI product code
- {4C66F929-9917-4BE6-932F-2DE9F0C30DAA}
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Proton Authenticator free?
Yes. Proton Authenticator is open-source software under the GPL-3.0 licence.
Is Proton Authenticator safe to download?
The download comes from proton.me, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install Proton Authenticator with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Can Proton Authenticator be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does Proton Authenticator run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Proton Authenticator?
The versions page lists all 8 versions with links to their official installer files, back to July 31, 2025.
What are alternatives to Proton Authenticator?
Bitwarden, KeePassXC, Yubico Authenticator, Password Safe and Ente Auth. The alternatives page compares them.
