Ente Auth, 2FAS Auth and Aegis are open-source alternatives to Google Authenticator, but they suit different devices and backup preferences. Switching is a transfer of sensitive account secrets, not just an app reinstall: check that the new app can import your tokens, preserve your recovery methods, and verify codes before removing the old setup.
Which open-source authenticator should you choose?
There is no universal “most secure” choice in the available evidence. Start with your phone platform, then compare how each app handles sync, backups, export and account requirements.
| App | Platform and Google Authenticator import | Sync, backups and offline use | Export and browser support |
|---|---|---|---|
| Ente Auth | Mobile, desktop and web apps. Its import documentation lists Google Authenticator as a supported source, though Ente notes that the list may be out of sync. Ente Auth · Import and export documentation | Ente describes end-to-end encrypted cloud backups and sync. It also advertises offline use without an account. Ente Auth | Ente says users can import and export data. A browser extension is not established in the cited product information. Ente Auth |
| 2FAS Auth | Mobile authenticator with a browser extension that pairs with the phone app. The cited product page does not establish Google Authenticator import details. 2FAS Auth | 2FAS describes free offline operation and synchronization through export files, iCloud or Google Drive. The storage route you choose matters to your backup and privacy decisions. 2FAS Auth | Supports export-file synchronization and offers a mobile-connected browser extension. 2FAS Auth |
| Aegis Authenticator | Android only; the project describes compatibility with Google Authenticator. It is not a fit if you need an iOS app. Aegis Authenticator | Uses an encrypted vault with AES-256-GCM and password or biometric unlock. The project describes user-chosen automatic backups. Aegis Authenticator | Offers plaintext or encrypted export. Protect plaintext exports carefully and delete temporary copies after confirming the transfer. Aegis Authenticator |
Choose Ente Auth for cross-platform access and encrypted sync
Ente is the clearest fit among these options if you want the same authenticator across mobile, desktop and web, with end-to-end encrypted cloud sync. Its documentation lists Google Authenticator among import sources; check the current import instructions before beginning because Ente warns that its source list can be out of date.
Choose 2FAS if browser integration is a priority
2FAS pairs its browser extension with the mobile app and offers several synchronization routes, including export files and iCloud or Google Drive. Decide which route you intend to use and secure any exported file as carefully as the codes themselves.
Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstall#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Choose Aegis for an Android vault
Aegis is an Android-focused option with an encrypted vault and export choices. Its Android-only availability rules it out for someone who needs to use an authenticator app on iPhone.
What “open source” does—and does not—tell you about security
Open-source code can be inspected, but that label alone does not establish that a particular app’s backup or sync mechanism is safe. A 2023 USENIX Security Symposium study examined backup mechanisms in specific historical app versions and reported serious implementation or cryptographic-use flaws in some mechanisms it tested. Its findings are not a current ranking of Ente, 2FAS or Aegis, and should not be treated as one. USENIX Security Symposium study
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
The study’s sample illustrates why backup design deserves attention, but its counts are not market-wide rates or current product statistics. Across the apps sampled, the authors recorded 7 QR-code mechanisms, 3 cloud-sync entries, 9 plaintext file-export entries, 5 encrypted file-export entries, 6 plaintext sharing entries, 7 encrypted sharing entries, 4 apps with Android backup and 9 apps with no backup mechanism in the categories used. The study table also reported 181.5M+ total installs across its sampled apps; that historical total is not a current install count for any one app. USENIX Security Symposium study
For your own choice, assess the specific backup route, who can access it, whether it is encrypted, how you recover access if you lose a device, and whether you can protect the vault and recovery material. Product descriptions are useful for understanding stated features; they are not independent security audits.
Recommended Free Tools
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
How to transfer Google Authenticator codes safely
Before changing apps, identify the accounts that rely on authenticator codes and confirm each service’s recovery method. Then follow the current instructions for Google Authenticator’s export and the destination app’s import. The 2FAuth migration guide describes Google Authenticator exporting tokens as QR codes; exports of more than ten entries may produce several QR codes in batches. Import support and exact steps vary by destination app. 2FAuth migration guide
- Prepare recovery access. For each account, locate its recovery codes or other recovery method and follow that service’s instructions. Do not rely on the authenticator transfer as your only way back into an account.
- Check the destination app first. Confirm that it supports importing from Google Authenticator and review its current import steps. If it does not support a direct import, use the account provider’s own process to set up a new authenticator rather than assuming the apps share a universal transfer format.
- Export from Google Authenticator. Use its current export flow and scan the generated QR code or codes into the destination app as instructed. When an export displays account secrets, treat it like a password: do not screenshot it, upload it to photo backup, or send it through email or chat.
- Validate the new entries. Keep the old app in place while you test codes from the new one against the corresponding services. If a code fails, use that service’s recovery or re-enrollment instructions; do not delete the old entry as a troubleshooting shortcut.
- Remove temporary transfer material. After confirming the new entries, delete temporary files or copies of export material. If you used a plaintext export, protect it from anyone with access to the device or storage until it is removed.
- Retire the old setup only after confirmation. Once the new codes work and recovery access is accounted for, follow the relevant services’ instructions for removing or replacing the old authenticator enrollment.
Can you use an authenticator on more than one device?
That depends on the app and the sync or backup feature you choose. Ente describes sync across mobile, desktop and web; 2FAS describes synchronization through export files, iCloud or Google Drive; Aegis describes encrypted vault storage and user-chosen automatic backups on Android. These approaches are not interchangeable: check the app’s current documentation for which devices and recovery steps your chosen setup supports.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
