Open Desktop Authenticator

Open Desktop Authenticator

Steam Guard codes and confirmations on your computer. Open Desktop Authenticator (ODA) is a free, open-source app for Windows and Linux. View codes for your accounts, review trade and market confirmations, and import existing SDA .maFile backups into an encrypted vault.

Four official download sources: Microsoft Store, GitHub, Softonic and Uptodown. Read the Softonic download notice.

Published by MASTERPANEL LLC. ODA is independent of Valve and the original SDA project. Looking for Steam Desktop Authenticator?

Signed Windows downloads are here. GitHub 1.5.1 is signed by MASTERPANEL LLC using Microsoft Azure Artifact Signing. About the signatures.

ODA accounts screen with account cards, Steam Guard code timers and import controls
ODA v1.5.0 interface, captured with fictional demo accounts and codes. This illustrates the account view; it is not a live Steam session or a new release test.

Status: 1.5.1 — four official download sources#

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 a Windows installer, portable build or x64 Linux package on the download page. Published packages and platforms tested by a person are listed separately there.

Current limits: builds are not yet reproducible and no independent audit has happened. Read the release and testing details.

Code signing policy: signed Windows downloads, Store package signing, Linux verification and checksum-list signatures — read it here.

What it does#

Steam Guard codes#

The five-character code, regenerated every thirty seconds, with the time remaining shown as it drains. Copy puts it on the clipboard and attempts to clear that entry on a timer. Clipboard history and other apps' copies are outside that clearing.

Trade and market confirmations#

Approve or cancel the confirmations Steam would otherwise send to a phone. Optional automatic confirmation is limited to market listings and trades, and cannot be widened to cover account-recovery requests.

Import from SDA#

Reads .maFile accounts, including encrypted ones with their manifest.json. Nothing is written to your vault until you choose what to keep. How importing works.

An encrypted vault#

Secrets are sealed with a key derived from your passphrase using scrypt, then encrypted with AES-256-GCM. The vault locks itself when you stop using it. The full security model.

Adding a new authenticator#

Move Steam Guard onto this app for an account that does not have an authenticator yet, including the revocation code you must write down and confirm you have saved outside this computer. Complete Steam's separate activation challenge as shown by the app.

Recovery that exists in advance#

Encrypted account recovery files are created during import, enrollment and transfer, and retained after a vault entry is removed. They need the passphrase used when written. Keep an independent backup: a file on the same disk cannot protect you from losing that disk.

Find us on AlternativeTo

Explore our listing, compare alternatives, and share your experience with ODA.

Open Desktop Authenticator — listed on AlternativeTo

Now available on Uptodown

Find ODA 1.5.1 for Windows x64 on Uptodown, listed under MASTERPANEL LLC.

Its displayed installer checksum matches our GitHub release. Compare all four download sources and verify the file you download.

Get Open Desktop Authenticator for Windows on Uptodown

Listed on Softonic

Find Open Desktop Authenticator for Windows on Softonic, published by MASTERPANEL LLC. On 1 October 2026, Softonic displayed “Trusted Program” and “Official distributor” on our listing.

A public download tested on 1 October 2026 returned a separate Softonic downloader instead of the original ODA installer. Resolution is not verified; use Microsoft Store, GitHub or Uptodown. Read the download notice and what the labels mean.

View ODA on Softonic

Why this exists#

ODA provides a desktop workspace for people who already manage Steam accounts and maFile backups on a PC. It is a separate implementation, with its own source, release process and support. The original Steam Desktop Authenticator and ODA are different projects; that guide links the genuine original and explains your choices, including Valve's official mobile app.

Using a desktop authenticator puts the Steam session and its second factor on the same computer. If you do not need that workflow, use Steam Mobile on a separate phone. If you choose ODA, review its security model, verify the download and keep an independent backup before importing accounts.

What it will not do#

Start here#

Published and reviewed by MASTERPANEL LLC. Last checked . Editorial method.