WinAuth is a free, open source two-factor authentication (2FA) app for Windows. It is built for gamers, traders, and anyone who wants to generate login codes on a desktop instead of a phone. It works with the same time-based codes used by Google Authenticator and with counter-based HOTP codes.
Because it runs on Windows, you can see several accounts at once, copy codes with a shortcut, and keep everything locked to your PC or a hardware key. The project is licensed under GPL-3.0, so its source code is public for anyone to inspect.
What Is WinAuth and Who Is It For?
Two-factor authentication adds a second check to your login, usually a short code generated on a device you control. Most people use a phone app for this. WinAuth fills the same role on a Windows PC.
The app is aimed at people who spend long hours at a computer and want their codes close at hand. Gamers who protect accounts on Battle.net or Steam, traders who log into crypto exchanges, and IT-minded users who prefer desktop tools are the typical audience.
Because WinAuth is an open source project released under GPL-3.0, its code can be reviewed by security researchers and developers. That transparency is one reason some users prefer it to closed-source alternatives.
How Time-Based One-Time Passwords Work
Most modern authenticators rely on time-based one-time passwords (TOTP), defined in RFC 6238. The app and the service share a secret key when you set up 2FA. Both sides then combine that key with the current time to produce a six-digit code that changes every 30 seconds.
Because the code depends on the secret and the clock, a stolen password alone is not enough to log in. An attacker would also need the secret, which lives on your device.
HOTP works differently. It uses a counter instead of the clock, so each code is tied to how many times it has been generated. WinAuth handles both approaches, which means you can keep accounts from different services in one place.
Common Scenarios for a Desktop Authenticator
Consider a player who manages several Battle.net accounts and a Steam profile. Instead of reaching for a phone each time, they can open WinAuth, see every code at once, and copy the right one with a hot key.
A trader who logs into several exchanges might use WinAuth alongside a password manager such as KeePassXC. The password manager stores the login, while WinAuth generates the second factor. Keeping those two roles separate is a sound habit: if one tool is compromised, the other still stands between an attacker and your account.
A user who travels with a laptop but not a phone may prefer a desktop authenticator. Portable mode lets them carry the program on a USB drive without leaving traces on borrowed machines, although they should still be careful about where they enter their master password.
Keeping Your Authenticator Data Recoverable
The biggest practical risk with any authenticator is losing access to the codes. If your PC fails and you have no backup, you may be locked out of accounts that depend on the secret keys.
WinAuth offers restore features for some services, which can help if the platform supports re-enrolling a device. For other accounts, the safest approach is to save the original setup key or recovery codes when you first enable 2FA. Store those somewhere secure and separate from your PC.
Regular backups of the WinAuth data file, protected with a strong password, are also worth making. Keep them offline, such as on an encrypted drive.
Key features
Time-based and counter-based codes
Built-in support for gaming platforms
Steam Guard and trade confirmations
Multiple authenticators on one screen
Protection with a password, machine lock, or YubiKey
Restore options for supported services
Custom icons and hot keys
Portable mode
Supported coins
WinAuth's documentation mentions Bitcoin (BTC) in the context of exchange logins. Its main strength, however, is generating 2FA codes for a range of exchanges, gaming platforms, and general websites rather than managing crypto assets directly.
How to install WinAuth on Windows
- 1
Download the Windows version
Go to the official website at https://winauth.github.io/winauth/ or the releases page on GitHub. Download the latest release package. Avoid beta builds unless you are testing new features.
- 2
Verify the download
Calculate the SHA-256 checksum of the downloaded zip file and compare it with the value published on the release page. You can do this in PowerShell with Get-FileHash. If the values do not match, delete the file and download it again.
- 3
Extract the program
WinAuth does not use a traditional installer. Open the zip archive and extract WinAuth.exe to a folder of your choice. Creating a dedicated folder makes it easier to manage updates later.
- 4
Run and set a master password
Launch WinAuth.exe. On first run, set up how your data will be protected: a password, a link to the Windows machine or account, or a YubiKey. Choose the option that matches how you use your PC.
-
Add your first authenticator
Use the add option and follow the prompts for the service you want to protect. Scan or enter the setup key the website provides, then confirm a code to finish enrollment.
System requirements
- Windows with Microsoft .NET Framework 4.5 installed
- Enough free disk space for the program and its data file
How to use WinAuth
WinAuth is straightforward once your first authenticator is set up. The main window lists each account with its current code, and the code refreshes automatically when the time window ends.
A typical workflow looks like this:
- Open WinAuth and enter your master password or confirm access through your YubiKey.
- Find the account you need in the list. Use the search or sort options if you manage many entries.
- Click the code to copy it, or use the hot key you assigned to paste it into the active window.
- Enter the code on the website before it expires. If it expires, wait for the next code and try again.
- For trading confirmations or Steam Guard prompts, use the built-in options to approve them directly from the app.
- Lock the program when you step away, or close it, so the codes stay hidden from other users of the PC.
Pros & cons
- Free and open source under GPL-3.0
- Supports standard TOTP and HOTP codes
- Built-in support for many gaming platforms and Steam
- Shows multiple authenticators at once
- Several protection options, including YubiKey
- Portable mode avoids changes to the system
- No installer needed
- Windows only; the mobile versions are separate products
- Requires some care with backups, since losing local data can lock you out
- Interface is functional rather than polished
- The documentation is less extensive than that of large commercial authenticators
Is WinAuth safe?
WinAuth should be downloaded only from the official website or the GitHub releases page. Check the SHA-256 checksum of the file against the value published by the developers before running it. If the source is unclear, do not use the file.
An authenticator holds the secrets that protect your accounts, so treat its data file as sensitive. Use a strong master password, enable the machine or YubiKey protection if you can, and keep backups encrypted. Never type your master password or setup keys into third-party websites or messages, and be wary of anyone asking for them.
Antivirus tools occasionally flag small utilities that handle secrets. If that happens, check the file's checksum and the source before deciding what to do. Keep the program updated, and check the official site for the latest version before installing.
- Official source only. Download from winauth.github.io/winauth. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
WinAuth focuses on desktop 2FA with strong support for gaming platforms and Steam. It differs from password managers such as KeePassXC, which store logins but do not generate time-based codes in the same way, so many users run both together. KeePassXC is better suited to storing and generating passwords across an entire life of accounts, while WinAuth is narrower and more specialized.
If your main concern is recovering access to your own wallet, tools like BTCRecover are a different category entirely: they help recover forgotten passwords, not authenticate logins. Hashcat serves a similar recovery purpose on the password side. For encrypted backups of authenticator data, VeraCrypt and Cryptomator offer container and cloud encryption that complement a 2FA app.
For verifying the files you download, including WinAuth itself, the 7-Zip and certutil SHA-256 approach is a practical habit. Gpg4win can check PGP signatures when a developer provides them.
Specifications
- Price
- Free
- Type
- Open source
- License
- GPL-3.0
- Latest version
- 3.6.2
- Last update
- —
- Windows support
- Yes (official Windows version)
- Official site
- winauth.github.io/winauth
- Source code
- github.com/winauth/winauth
Frequently asked questions
Yes. WinAuth is free and released under the GPL-3.0 license, which means its source code is publicly available. You can download it from the official website or the GitHub releases page without paying for a license.
WinAuth is open source, so its code can be reviewed by others. To stay safe, download it only from the official site or GitHub, verify the SHA-256 checksum, and protect your data with a strong master password, machine binding, or a YubiKey.
Yes, WinAuth supports RFC 6238 time-based authenticators, the same standard used by Google Authenticator. Many services that offer app-based 2FA accept codes generated by any compliant authenticator, including WinAuth.
Yes. WinAuth supports Steam's SteamGuard codes and can also handle trading confirmations. This makes it a popular choice for players who want their Steam codes on the desktop.
WinAuth is designed for Windows and runs as a standalone executable. It requires Microsoft .NET Framework 4.5, so make sure that component is available on your system before running the program.
If you have no backup, you may lose access to accounts protected by WinAuth. For some services, restore features can help. Always save recovery codes or setup keys from each service and keep an encrypted copy of your data file.
Yes. Portable mode prevents WinAuth from changing other files or registry settings, so you can run it from removable storage. Be careful when entering your master password on computers you do not control.
Verdict
WinAuth is a solid choice for Windows users who want two-factor codes on their desktop, especially gamers and traders who manage Steam, Battle.net, or exchange logins. It is free, open source, and offers useful protection options. Its interface is basic and backups require attention, so pair it with a password manager and a careful backup routine. Confirm the latest version on the official website before installing.