LocalBox2FA review
A low-cost local TOTP extension with useful account tools but no sync or encrypted backup.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
LocalBox2FA is a Chromium browser extension from AnnMax that generates RFC 6238-compatible TOTP codes locally. It is aimed at personal users who want to manage authenticator accounts inside Chrome or Microsoft Edge without creating an account. Saved secrets remain in local browser extension storage, while live codes include 30-second countdown timers and one-click copying. Account management covers searching, renaming, importing, exporting, bulk deletion, and QR-code display for account transfer. The interface also supports dark mode and six languages.
The free VKT Free Core plan provides basic functions for all extensions, local processing, and no forced login. Paid choices begin with the VKT Single Tool License at $2.99 per month, which selects one extension and unlocks batch premium features for it, or $9.99 one-time for permanent access. The VKT Full Toolkit Suite costs $4.99 per month or $29.99 one-time and includes all current extensions, future new extensions, and permanent access on the one-time plan. A three-day free trial is also available. According to the published plans, the one-time single-tool license is the straightforward option for users who want permanent access to this extension.
Its main fit is local, browser-based TOTP management rather than a synchronized authenticator service. The extension supports records from Google Authenticator and Authy, and its import, export, and QR-display tools help with account transfer. However, the published specifications show no encrypted backup and no multi-device synchronization, so users who need cloud recovery or consistent access across devices should choose an alternative. LocalBox2FA suits Chrome or Edge users who prefer local processing, no forced login, and a free core with optional low-cost upgrades. It is less suitable for people who need native mobile coverage, encrypted backups, or synchronized accounts across multiple devices.
LocalBox2FA pros and cons
- Where it wins
- RFC 6238 TOTP generation with 30-second countdown timers
- Local storage, search, renaming, imports, and exports
- QR-code transfer, bulk deletion, dark mode, and six languages
- Where it doesn't
- Available as a browser extension rather than a broader app
- No encrypted backup or multi-device synchronization
- Premium features are limited to one extension or the full toolkit
LocalBox2FA fact sheet, pricing and score →
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