Download Open Desktop Authenticator

Open Desktop Authenticator 1.5.1 is published in the Microsoft Store and on GitHub, and listed for Windows x64 by Softonic and Uptodown: four official download sources. Choose your package below. These are ODA downloads, an independent alternative to the original Steam Desktop Authenticator.

Choose from four official sources#

Microsoft Store 1.5.1 GitHub 1.5.1: all packages Softonic 1.5.1: read notice below

The Store package is x64, and Uptodown lists the original x64 installer. Read the Softonic download notice before using its listing. GitHub offers native x64 and ARM64 Windows installers, portable x64, and x64 Linux packages. Check your computer's system type before choosing an installer.

Get every direct package from the GitHub release assets. Do not select the source-code ZIP when you want an installer. No macOS build is published. Windows builds target Windows 10 version 1809 or later and Windows 11; that minimum is not a recommendation to use an operating system without security updates.

Four official download sources#

Get ODA from the Microsoft Store, GitHub, Softonic or Uptodown. This website links to downloads and does not serve an installer itself. Check MASTERPANEL LLC as publisher and use the official-address reference if a link looks unfamiliar.

Softonic's labels: Open Desktop Authenticator for Windows. Softonic displays “Official distributor”, meaning it has authorization to distribute ODA, and “Trusted Program”, with a clean VirusTotal scan reported for the listed file. These labels were checked on 1 October 2026. They describe distribution authorization and a file scan; they are not an independent security audit of ODA. The listing is for Windows x64; the labels do not establish what the public download route delivers. Use GitHub for native ARM64, portable Windows or Linux packages. For a downloaded ODA installer, check its MASTERPANEL LLC signature and compare its checksum with the matching GitHub release using our verification steps.

Uptodown: ODA 1.5.1 for Windows x64 is listed under MASTERPANEL LLC. On 15 October 2026, its displayed SHA-256 matched the original GitHub x64 installer's published checksum. This verifies the listing information; check the signature and checksum of the file you actually download.

Microsoft signs the Store AppX package and checks its integrity during installation. The Store's package signature is separate from a publisher signature on a direct download. See Microsoft's signing requirements and Store update settings.

GitHub 1.5.1 Windows downloads are signed and timestamped as MASTERPANEL LLC using Microsoft Azure Artifact Signing. SmartScreen may still warn, and device policy may block an application. A valid signature is not a reason to dismiss a malware detection. Verify the file before running it.

Install or update without losing your accounts#

1. Back up first if you already use ODA. Keep an independent encrypted vault backup, its passphrase and recovery information. Updating the app and replacing an account's Steam authenticator are different operations.
2. Choose one distribution route. The Store manages its edition's updates. Direct builds obtained from GitHub, Softonic or Uptodown can report a newer GitHub release but do not download or install it. The portable build has no Store equivalent.
3. For a new setup, create your vault. Then use Import maFiles for existing SDA files, or follow the setup documentation. A phone authenticator requires a different transfer workflow.

The portable launcher keeps account data beside the executable but extracts runtime files to Windows Temp while running. It normally removes those runtime files on exit. Portable packaging does not bypass an organisation's device policy.

Installing a verified Linux download#

Choose one package. On Debian or Ubuntu, from the download directory, run sudo apt install ./open-desktop-authenticator-1.5.1-amd64.deb. For the AppImage, enable its executable permission in your file manager, or run chmod +x ./open-desktop-authenticator-1.5.1-x86_64.AppImage, then open it as your normal user. If it does not launch, report the error and your distribution/version through support. Package availability does not establish compatibility with every distribution.

What is finished#

• Implemented features include codes, confirmations, enrollment, import/export, an encrypted vault and recovery files. Read their security boundaries.
• Published checksums in SHA256SUMS.txt identify the release bytes. Follow the available verification procedure, including how to inspect build provenance and the producing workflow.
• Windows installers and the portable executable are signed and timestamped as MASTERPANEL LLC using Microsoft Azure Artifact Signing. Linux packages do not carry a platform code signature.
• The current GitHub release includes SHA256SUMS.txt.sig and its certificate for checking the checksum list's origin.
• The release notes identify its automated and manual checks. Historical maintainer testing is recorded in the founder test plan. Those older observations are not a new test of every current package.

What is still missing#

• Reproducible builds. Independently rebuilding the tag to match the published bytes is not yet established. Build provenance does not substitute for that comparison.
• An independent security audit. Maintainer test records and automated checks do not establish independent review.
• Manual coverage for every platform and workflow. The maintainer record still lists Linux runtime, live two-account proxy isolation and the signed-in browser handoff as gaps. The release notes do not claim native ARM64 execution.

Source, licence and help#

ODA is free software under the MIT licence, with no ODA account or subscription. The source repository includes build instructions. Public code and release signatures establish inspectability and origin; they do not establish harmlessness.

• Verify your ODA download
• Import existing SDA accounts
• Remove ODA while preserving account access
• Compare options before choosing a desktop authenticator