OTP Code Generator
Generate and verify TOTP/HOTP one-time passwords. Outputs QR codes compatible with Google Authenticator.
OTP Code Generator
How to Use
Enter Secret Key
Enter an OTP secret key (Base32) or generate a new one
Adjust OTP Settings
Adjust settings like digit count, algorithm, and update interval
Use OTP Code
Copy the generated one-time password for authentication
Features
TOTP & HOTP Support
Supports both time-based (TOTP) and counter-based (HOTP)
QR Code Generation
Generate QR codes compatible with Google Authenticator and others
Real-Time Update
Display TOTP countdown timer with auto-refresh
FAQ
🔗Related Tools
Base64 Encoder/Decoder
Encode and decode text in Base64 format. Fully supports UTF-8 characters.
URL Encoder/Decoder
Encode and decode URLs in real time. Supports both encodeURIComponent and encodeURI methods.
HTML Entity Encoder
Convert HTML special characters to entities and back. Supports & < > and numeric character references.
Hash Generator
Generate SHA-1/256/384/512 hash values from text. All algorithms computed in real time as you type.
Password Strength Checker
Check password strength in real-time. Analyzes length, character types, and patterns to provide a score.
Text to Binary Converter
Convert between text and binary representation. Fully supports UTF-8 characters including international text.