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Preview of ALT 2FA: Authenticator

ALT 2FA: Authenticator by AltRepo

Generate and securely store two-factor authentication codes directly in your browser. Local-first, no account required.

Available on Firefox for Android™
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About this extension
ALT 2FA is a local authenticator for Chrome that generates two-factor authentication codes directly in your browser.

Use it to save your 2FA accounts, generate time-based one-time passwords, and quickly copy codes when signing in. Your authenticator vault is encrypted and stored locally in your browser, so your codes stay on your device.

Features:

• Generate standard 6-digit TOTP codes
• Store authenticator entries in an encrypted local vault
• Add accounts manually with setup keys
• Scan QR codes from your screen or uploaded images
• Organize entries with issuer and account labels
• Copy codes quickly when signing in
• Lock and unlock your vault with a master password
• Import and export encrypted backups
• Works directly inside your browser
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Permissions and data

Required permissions:

  • Input data to the clipboard

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
1.0.1
Size
125.1 KB
Last updated
3 days ago (Jun 19, 2026)
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