ESP32 & ESP32-S3 · OPEN SOURCE · MIT LICENSE
Your secrets stay on the device
TOTP authenticator and password manager for ESP32. No cloud. No subscriptions. AES-256 encrypted. Fully open source.
FEATURES
TOTP & HOTP
RFC 6238 and RFC 4226. Compatible with Google Authenticator, Authy, and all standard apps.
Password Manager
Encrypted offline vault. BLE HID keyboard types passwords directly. S3 adds USB HID support — no clipboard, no app needed.
Web Interface
Runs on the device. Full management from any browser, no cloud, no account.
AES-256 Encrypted
Per-device key derived from your PIN via PBKDF2-HMAC-SHA256. Nothing stored in plaintext.
8-Layer Web Security
ECDH key exchange, AES-GCM session encryption, URL obfuscation, traffic masking.
Works Offline
Passwords and HOTP codes work in all modes. TOTP works offline with an optional DS3231 RTC module — no internet needed.
SUPPORTED BOARDS
T-Display ESP32 (Classic)
- Display: 1.14" SPI (135×240)
- MCU: ESP32 (Dual-core 240MHz)
- PSRAM: ❌ No
- BLE HID: ✅ Native support
- USB HID: ❌ Not supported
- RTC Module: ✅ DS3231 supported
- Security: AES-256 encryption
Compact, affordable, perfect for basic TOTP and password management.
T-Display-S3
- Display: 1.9" Parallel (170×320)
- MCU: ESP32-S3 (Dual-core 240MHz)
- PSRAM: ✅ 8MB
- BLE HID: ✅ Native support
- USB HID: ✅ Native support
- RTC Module: ✅ DS3231 supported
- Security: AES-256 (better performance)
Larger display, USB HID support, more memory — recommended for advanced features.
QUICK START
$ git clone https://github.com/makepkg/SecureGen.git
$ cd SecureGen
# Open in VS Code with PlatformIO extension
# Build & Upload to your ESP32FIND US