FlashOTP - One-Click Auto-Login

Flash-fast TOTP authenticator with one-click auto-fill & auto-login for Chrome.

What happens when authentication becomes one‑click instead of several steps? FlashOTP provides an automatic authentication feature, allowing you to automatically complete authentication by simply clicking the OTP code. 1. Automatic login with a single click of the OTP code * TOTP generation based on the RFC 6238 standard * Auto-complete and auto-submit options provided * Find input forms based on CSS selectors and enter ID and OTP code * Automatically log in by selecting Enter or the Login button * Automatically log in when accessing a URL 2. Robust Security * Set a Master Password upon initial launch * Derive an encryption key from the Master Password using PBKDF2 * Create a Secret Key using AES-GCM and store it in the extension's storage 3. Backup and Restore Functions * Change the Master Password * Export/Import Data This program was developed using Vibe Coding. Changelog [1.2.0] - 2026-02-23 Added * View QR Code: Generate a QR code for your registered OTP account and transfer or back it up to another device/app. * Edit Card Button: Added an Edit (✎) icon to the right of the QR icon. * Split OTP Input Support: Automatically detects and splits the input for sites where the OTP field is split into individual characters (maxlength="1"). --- [1.1.0] - 2026-02-18 Added * CSS Selector visual selection feature (Element Picker): Directly select elements on a web page with a mouse click using the "Select" button next to the selector input field. Changed * URL patterns are no longer required when autofill is configured. * Improved error notification speed when autofill fields are not found (separate timeouts by trigger source).