AuthWin

Free plan Windows

What AuthWin is

AuthWin is a free Windows desktop authenticator that generates time-based one-time passwords for website two-factor authentication. It stores account data locally in an encrypted file rather than sending it to a server or cloud service; the maker says AES with a 256-bit key is used. Accounts can be added by scanning a website QR code or entering its secret manually. AuthWin can import accounts from a QR code exported by Google Authenticator. For backup, accounts can be exported individually as QR codes or together as a JSON file, with optional password protection. The app supports TOTP and does not list HOTP support. It requires Windows 8 or later and .NET Framework 4.8 or later. Windows may show an installation warning because the application lacks a code-signing certificate. AuthWin does not provide multi-device sync. It is created by Yash, identified on his personal site as Yash Gadhiya. The listed Free plan costs nothing.

Who it suits

AuthWin suits Windows users who want local storage for website TOTP codes and manual or QR-based account enrollment. It is less suited to people needing synchronization across devices or HOTP support.

What it does well

Free Windows authenticator
AES-256 encrypted local account file
Google Authenticator QR import
Password-protected JSON export option
No server or cloud transmission

What to know first

No multi-device sync
Windows installation may show an unsigned-app warning
Requires Windows 8+ and .NET Framework 4.8+

Plans

Plan	Billed and limits	Price
Free	Free authenticator app for Windows	Free

As authwin.com lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

AuthWin offers a free, local approach to TOTP authentication with import and export tools. Its Windows-only deployment, lack of sync, and unlisted HOTP support define the main limits.

Facts from AuthWin's own pages

Code type: totp · authwin.com, 22 Sept 2026
Creator: AuthWin is created by Yash, whose personal site identifies him as Yash Gadhiya. · yash.info, 11 Oct 2026
Encrypted backup: Yes · authwin.com, 22 Sept 2026
Encryption: The site says local account data is encrypted using AES with a 256-bit key. · authwin.com, 11 Oct 2026
Enrollment: Accounts can be added by scanning a website’s QR code or manually entering its secret code. · authwin.com, 11 Oct 2026
Export and backup: Accounts can be exported individually as QR codes or together as a JSON file, optionally password protected. · authwin.com, 11 Oct 2026
Feedback: The site links to a form for suggestions and feedback. · authwin.com, 11 Oct 2026
Free plan: Yes · authwin.com, 22 Sept 2026
Google Authenticator import: AuthWin can import accounts from a QR code exported by Google Authenticator. · authwin.com, 11 Oct 2026
Installation notice: The maker says Windows may warn during installation because the app is not signed with a code-signing certificate. · authwin.com, 11 Oct 2026
Local storage: Account data is stored on the computer in an encrypted file and is not sent to a server or cloud service. · authwin.com, 11 Oct 2026
Multi-device sync: No · authwin.com, 22 Sept 2026
OTP support: AuthWin currently supports TOTP and does not list HOTP support. · authwin.com, 11 Oct 2026
Platform: The maker describes AuthWin as a Windows desktop app. · authwin.com, 11 Oct 2026
Purpose: AuthWin generates time-based one-time passwords (TOTP) for two-factor authentication on websites. · authwin.com, 11 Oct 2026
Supported platforms: Windows · authwin.com, 22 Sept 2026
System requirements: The listed requirements are Windows 8 or later and .NET Framework 4.8 or later. · authwin.com, 11 Oct 2026

Where AuthWin stands on Freedom251

Authenticator apps#90 of 111