LocalBox2FA

Free plan Extension

What LocalBox2FA is

LocalBox2FA is a Chrome and Microsoft Edge extension that generates RFC 6238-compatible TOTP codes locally for two-factor authentication. It works with Google Authenticator, Authy, and standard TOTP services, while the maker says data is not uploaded. Free functions include a 30-second countdown, one-click copying, saved accounts with live codes, search, renaming, single-record deletion, and duplicate-key prevention. Licensed features add record export, import, clearing all records, and a QR code for transferring accounts to a phone authenticator. Free features work offline; network requests are used for license activation or validation. The extension supports English, Chinese, Japanese, German, Spanish, and French. The maker states that secrets remain in local extension storage, but secret keys are stored without encryption and export files are unencrypted. There is no encrypted backup or multi-device synchronization. A free core plan costs 0.00 USD forever. A single-tool license costs $2.99 a month, and the full toolkit suite costs $4.99 a month. A manually issued, no-card three-day trial is available by email.

Who it suits

It suits users wanting browser-based TOTP codes with local processing and offline free features. It is less suited to people requiring encrypted backups or synchronization across devices.

What it does well

Local TOTP generation
Free core plan with no forced login
Offline operation for free features
Supports Chrome and Microsoft Edge
Six supported interface languages

What to know first

No encrypted backup
No multi-device synchronization
Secret keys and exports are unencrypted
Official installation uses Chrome Web Store

Plans

Plan	Billed and limits	Price
VKT Free Core	$0 forever · All extensions’ single-file basic functions · no watermarks · no forced login	Free
VKT Single Tool License	$2.99 /month · Monthly auto-renews · Choose any one extension · unlocks that extension’s batch premium features · 7-day refund for unused licenses	$2.99 a month
VKT Full Toolkit Suite	$4.99 /month · Monthly subscribers lock original price forever · All current 16 extensions’ batch premium features · future extensions included · cancel monthly anytime · 7-day refund for unused licenses	$4.99 a month
VKT Full Toolkit Suite	$29.99 one-time lifetime · All current 16 extensions’ batch premium features · future extensions included · permanent access, no renewal	$29.99, paid once
VKT Single Tool License	$9.99 one-time lifetime · Choose any one extension · unlocks that extension’s batch premium features · 7-day refund for unused licenses	$9.99, paid once

As annmax1983.com lists them, read 8 Oct 2026. The maker's own page has the final word.

Verdict

LocalBox2FA covers everyday TOTP code generation in a browser extension, with useful free account tools and optional paid transfer features. Its lack of encryption for stored secrets and exports, plus no synchronization, should guide the purchase decision.

Facts from LocalBox2FA's own pages

Code tools: Free features include a 30-second countdown, one-click copying, saved accounts with live codes, search, rename, single-record deletion, and duplicate-key prevention. · annmax1983.com, 8 Oct 2026
Code type: totp · annmax1983.com, 22 Sept 2026
Distribution limit: The maker says the official installation channel is the Chrome Web Store and that no offline installation packages are provided. · annmax1983.com, 8 Oct 2026
Encrypted backup: No · annmax1983.com, 22 Sept 2026
Free plan: Yes · annmax1983.com, 22 Sept 2026
Languages: The extension supports six languages: English, Chinese, Japanese, German, Spanish, and French. · annmax1983.com, 8 Oct 2026
License network use: The maker’s privacy policy says LocalBox2FA’s only network requests are for license activation or validation, sending a license key and device identifier; free features work offline. · annmax1983.com, 8 Oct 2026
Maker identity: The maker’s pages identify the toolkit as VKT, developed by AnnMax. · annmax1983.com, 8 Oct 2026
Multi-device sync: No · annmax1983.com, 22 Sept 2026
Paid features: Licensed features include exporting, importing, and clearing all records, plus displaying a QR code to transfer accounts to a phone authenticator. · annmax1983.com, 8 Oct 2026
Platforms: The maker lists Chrome and Edge installation links and describes the extension as Chromium-based and Manifest V3. · annmax1983.com, 8 Oct 2026
Privacy and security: The maker says codes are computed locally and secrets stay in local extension storage, but secret keys are stored without encryption and export files are unencrypted. · annmax1983.com, 8 Oct 2026
Purpose: LocalBox2FA generates TOTP two-factor authentication codes locally in the browser and uploads no data. · annmax1983.com, 8 Oct 2026
Support: The support page says support replies within 24 hours on workdays for issues including installation problems and feature suggestions. · annmax1983.com, 8 Oct 2026
Supported platforms: Chrome extension; Microsoft Edge · annmax1983.com, 22 Sept 2026
TOTP compatibility: It generates RFC 6238-compatible codes and supports Google Authenticator, Authy, and standard TOTP services. · annmax1983.com, 8 Oct 2026
Trial terms: A 3-day trial for one extension’s premium features can be requested by email, requires no credit card, and is issued manually by the developer. · annmax1983.com, 8 Oct 2026

Where LocalBox2FA stands on Freedom251

Authenticator apps#87 of 111