The XDA piece on ditching Google Authenticator for Proton calls out a gap that opened up in 2024 when Twilio shut Authy’s desktop apps down. Anyone who’d been keeping their codes on a Mac, a Windows PC, or a Linux box suddenly had to copy them off the phone every time a sign-in prompt landed. Proton Authenticator filled most of the void in 2025 with end-to-end-encrypted sync and native apps for every desktop. Ente Auth and a handful of password-manager built-in TOTP features round out the rest.
We tested 7 of the best apps for two-factor authentication on desktop in 2026 and ranked them by sync model, export options, hardware-key support, and the daily-use friction that decides whether you actually keep the desktop client open.
What to look for in a desktop 2FA app
Pick a desktop 2FA app that:
- Exports its codes. If you can’t get the secrets out, the app owns your accounts, not you. Plain-text TXT, encrypted JSON, or even a QR-code dump all count.
- Syncs in a way you trust. Either end-to-end-encrypted cloud sync (Proton, Ente), file-based sync (KeePassXC + Syncthing), or no sync at all (air-gapped use only).
- Supports steam-style and hardware variants. Some 2FA tokens use longer codes or non-standard digits. Apps that only do the RFC 6238 base case fail on Steam Guard, Battle.net Authenticator, and a few enterprise SSO setups.
- Plays well with a hardware key. YubiKeys with the TOTP applet still trump software-only 2FA on threat-model paranoia grounds. Good desktop 2FA either supports the YubiKey directly or sits alongside it.
- Doesn’t lock you into one OS. A Windows-only app is fine until you replace the laptop. The picks below cover Windows, macOS, and Linux unless we say otherwise.
Quick comparison
| App | Best for | Platforms | Free plan | Starting price |
|---|---|---|---|---|
| Proton Authenticator | End-to-end-encrypted sync | Windows, macOS, Linux | Yes, fully | Free |
| Ente Auth | Open-source cross-device sync | Windows, macOS, Linux | Yes, fully | Free |
| KeePassXC | TOTP inside a password vault | Windows, macOS, Linux | Yes, fully | Free |
| Bitwarden | TOTP inside the Premium vault | Windows, macOS, Linux | Free vault, Premium $10/yr | $0.83/mo Premium |
| Yubico Authenticator | YubiKey-backed codes | Windows, macOS, Linux | Yes, fully | Free + YubiKey ($25-$70) |
| Step Two | iCloud-synced, Mac-first | macOS, iPadOS, iOS | 10 codes free | $9.99 one-time Pro |
| 2FAS Browser Extension | Phone-anchored fill-in | Chrome, Firefox, Edge | Yes, fully | Free |
The 7 best apps for 2FA on desktop
1. Proton Authenticator, best end-to-end-encrypted sync
Proton Authenticator launched in 2025 as the missing piece in the Proton stack. Native apps for Windows, macOS, and Linux. Codes sync end-to-end-encrypted across Proton’s infrastructure, the same way Proton Mail keeps inboxes private. Sign-in is the Proton account, which means the household already on Proton Mail or VPN gets desktop 2FA for free. Open-source on GitHub. Imports from Google Authenticator, Authy, 2FAS, Aegis, Bitwarden Authenticator, and the rest.
Where it falls short: Sync requires a Proton account, even for the free tier. The Linux build is a recent addition and lags slightly on packaging (AppImage and Flatpak only, no native deb / rpm). Steam Guard isn’t yet a first-class entry type.
Pricing:
- Free: All sync, all platforms, unlimited codes
- Paid: Bundled into Proton Unlimited at $9.99/month, but the standalone Authenticator stays free
- Platforms: Windows, macOS, Linux, plus Android and iOS
Bottom line: The default 2FA desktop pick for anyone who wants encrypted sync without rolling their own server.
2. Ente Auth, best fully open-source option
Ente Auth comes from the Ente Photos team and inherits their threat model: end-to-end-encrypted, open-source on GitHub, paid only if you want premium storage on their cloud. Desktop apps for Windows, macOS, and Linux ship as Flutter builds. The app reads the same .kdbx-compatible export format that KeePassXC speaks, so migrating a vault between the two is one file.
Where it falls short: Smaller team than Proton. The Linux desktop build has a heavier footprint than the same code on Android. Polish lags Proton Authenticator by about a year on tooltips and settings UX.
Pricing:
- Free: Sync between all your devices, unlimited codes
- Paid: Ente Pro (photos + auth, 50 GB) $2.99/month, only needed if you also want Ente Photos
- Platforms: Windows, macOS, Linux, Android, iOS, web
Bottom line: The pick for a privacy-paranoid household that wants open-source bones and a maintained app on every platform.
3. KeePassXC, best for putting TOTP in your vault
KeePassXC has supported TOTP since 2.4. Add an entry to your password vault, paste the secret, and the desktop app shows a rotating code under the password. Sync is whatever you already use for the .kdbx file, Syncthing, Nextcloud, OneDrive, a USB stick. KeePassXC for 2FA in 2026 is the answer for anyone who already runs KeePassXC and wants one fewer app open.
Where it falls short: Convenient if you want one vault for everything, less convenient if you want TOTP visible without unlocking your password vault. Steam Guard and Battle.net codes work but require the entry type set correctly. No mobile sync of its own, pair with KeePass2Android or Strongbox.
Pricing:
- Free: All features, GPL-3
- Paid: None
- Platforms: Windows, macOS, Linux
Bottom line: Pick this when you already keep passwords in KeePassXC and want one consolidated vault.
4. Bitwarden, best inside an existing password manager
Bitwarden stores TOTP secrets on the entry record once you turn on Premium ($10/year). The desktop app, the browser extension, and the mobile app all autofill the code next to the password. Bitwarden for 2FA in 2026 is the most popular pick by quiet majority: most people who use Bitwarden Premium already let Bitwarden handle their codes. Bitwarden also publishes a separate free Bitwarden Authenticator app (mobile-only) that doesn’t require the Premium vault.
Where it falls short: Keeping the second factor in the same vault as the password reduces the practical benefit of having two factors. If a vault is compromised, both factors fall. Security-paranoid households split TOTP into a separate app for that reason.
Pricing:
- Free: Bitwarden vault is free; storing TOTP secrets in the vault needs Premium
- Paid: Premium $0.83/month (annual)
- Platforms: Windows, macOS, Linux (plus iOS, Android, web)
Bottom line: Pick this when you already pay for Bitwarden Premium and the threat model lets you keep both factors in one vault.
5. Yubico Authenticator, best for hardware-backed codes
Yubico Authenticator stores the TOTP secrets on the YubiKey itself, not on the desktop. The desktop app talks to the key over USB and displays codes only when the key is inserted. Yubico Authenticator for 2FA in 2026 is the right answer when the threat model includes a fully compromised laptop: the codes don’t exist on the disk and they can’t be exfiltrated without the physical key. Up to 32 TOTP credentials per YubiKey 5.
Where it falls short: Requires a YubiKey ($25 for the 5C, $50 for the 5 NFC, $70 for the YubiKey 5 Bio). Up to 32 codes per key, a power user with 60 sites in 2FA needs two keys. No sync; each YubiKey is independent.
Pricing:
- Free: The Yubico Authenticator desktop app is free
- Paid: One-time YubiKey purchase ($25-$70)
- Platforms: Windows, macOS, Linux (plus iOS NFC, Android)
Bottom line: Pick this when the threat model includes the laptop itself and you want the codes off the disk entirely.
6. Step Two, best for Apple-only households
Step Two is the macOS-and-iOS 2FA app that’s been quietly accumulating polish since 2019. Sync runs through iCloud Keychain (so it’s end-to-end-encrypted by Apple, not by Step Two). The Mac menu-bar app stays out of the way and surfaces codes on a hotkey. Step Two for 2FA in 2026 is the right answer if the entire household is already on iPhones and Macs.
Where it falls short: macOS, iPadOS, and iOS only, no Windows, no Linux, no Android. Free tier caps at 10 codes; Pro is a $9.99 one-time unlock to lift the cap.
Pricing:
- Free: 10 codes
- Paid: Step Two Pro $9.99 one-time
- Platforms: macOS, iPadOS, iOS
Bottom line: Pick this if the household is fully Apple and you want a quiet menu-bar utility instead of a window.
7. 2FAS Browser Extension, best as a phone-anchored desktop companion
2FAS is the mobile 2FA app that pairs with a browser extension on Chrome, Firefox, and Edge. The secrets live on the phone; the extension prompts the phone for a code when the desktop needs one, and the phone pushes the code back through 2FAS Cloud. 2FAS for 2FA in 2026 is the right answer for households that want the codes anchored to the phone but don’t want to type them in by hand every time.
Where it falls short: Not a native desktop client, it’s a browser extension that talks to the phone. Offline use means typing the code in manually from the phone. The cloud sync uses 2FAS’s own infrastructure, which is open-source but smaller than Proton’s.
Pricing:
- Free: All features, no plan
- Paid: None
- Platforms: Browser extension on Chrome, Firefox, Edge (paired with the 2FAS mobile app)
Bottom line: Pick this when the codes belong on the phone and the desktop just needs convenient access.
How to pick the right one
- If you want the simplest option: Proton Authenticator. Free, encrypted sync, native on every desktop.
- If open-source matters more than vendor reputation: Ente Auth or KeePassXC.
- If you already pay for Bitwarden Premium: store TOTP in Bitwarden and skip a second app.
- If the laptop itself could be compromised: Yubico Authenticator on a YubiKey.
- If you’re fully on Apple: Step Two.
- If the codes should live on the phone and only visit the desktop: 2FAS.
- If you tried Authy on desktop and have been homeless since 2024: Proton Authenticator is the closest spiritual replacement.
FAQ
Why did Authy’s desktop app shut down?
Twilio retired the Authy desktop apps for Windows, macOS, and Linux in March 2024, citing the need to consolidate around mobile and reduce support load. The mobile app remained, but desktop users lost access overnight. Proton Authenticator (2025) and Ente Auth filled the gap.
Can I import my codes from Authy or Google Authenticator into a desktop 2FA app?
Yes for both. Authy’s codes can be exported through a community tool (authy-export) that talks to the legacy backup endpoints. Google Authenticator exports as a single QR (or multiple QRs if you have a lot of codes) that Proton Authenticator, Ente Auth, and 2FAS all read directly.
What is the safest desktop 2FA app?
The threat model decides the answer. For a household defending against phishing and credential dumps, Proton Authenticator and Ente Auth are equally safe and the encryption is audited. For a household defending against a fully compromised laptop, Yubico Authenticator wins because the secrets aren’t on the disk.
Can a password manager replace a dedicated 2FA app?
Bitwarden Premium, 1Password, and KeePassXC all store TOTP secrets next to the password. That collapses the two factors into one vault, which is convenient but weakens the model that the codes were meant to provide. Households that take the threat model seriously keep TOTP separate.
Does Proton Authenticator work without a Proton account?
Yes, you can use it locally with no sync. The trade-off is that codes don’t survive a laptop reformat unless you’ve exported them.
What about hardware security keys instead of TOTP?
Hardware keys (YubiKey, SoloKey, Google Titan) using WebAuthn or FIDO2 are stronger than TOTP because they’re resistant to phishing. Many sites that offer TOTP also offer WebAuthn. The pragmatic move is to enroll both: a hardware key as the primary factor and a TOTP code in a desktop app as the recovery factor.
