Free TOTP Generator - Create Time-Based One-Time Passwords for 2FA
Need to generate time-based one-time passwords (TOTP) for two-factor authentication? Our free TOTP generator creates secure 2FA codes compatible with Google Authenticator, Microsoft Authenticator, and Authy. Just enter your secret key – and get time-based codes that refresh every 30 seconds. With support for multiple tokens, custom algorithms (SHA-1, SHA-256, SHA-512), and visual timers, it’s the most complete TOTP tool you’ll find. Everything stays in your browser – 100% private, no sign-up required.
A TOTP generator creates time-based one-time passwords using secret keys and the current time, compatible with Google Authenticator, Microsoft Authenticator, and Authy for secure two-factor authentication.
- Works Offline:
This tool uses the Web Crypto API to generate TOTP codes entirely in your browser. No internet connection or external API is required. - Standard Compatible:
Generates codes compatible with Google Authenticator, Microsoft Authenticator, and Authy using RFC 6238. - Local Storage:
Your secret keys are saved locally in your browser's LocalStorage. They never leave your device. - Time Sync:
For accurate codes, ensure your device's system clock is synchronized with internet time.
What is a TOTP Generator and How Does It Work?
A TOTP generator (Time-Based One-Time Password) is a security tool that creates temporary, time-based authentication codes used for two-factor authentication (2FA). These codes change every 30-60 seconds and are generated using a shared secret key and the current time.
Our free TOTP generator uses the Web Crypto API to implement the RFC 6238 standard – the same standard used by Google Authenticator, Microsoft Authenticator, and Authy. It supports multiple algorithms (SHA-1, SHA-256, SHA-512), custom digit lengths (6 or 8 digits), and time steps (30 or 60 seconds).
Key Benefits of This TOTP Generator:
Standard Compatible: Works with Google Authenticator, Authy, Microsoft Authenticator
Multiple Tokens: Store and manage multiple 2FA tokens
Customizable: SHA-1, SHA-256, SHA-512; 6 or 8 digits; 30 or 60 second steps
Visual Timer: See exactly when your code will refresh
One-Click Copy: Copy codes to clipboard instantly
Privacy First: 100% client-side processing
How to Use the TOTP Generator Tool
Using this online TOTP generator is incredibly simple:
Step 1 – Enter Token Name
Give your token a name (e.g., “Google”, “GitHub”, “Microsoft”).
Step 2 – Enter Secret Key
Enter your Base32-encoded secret key. This is the key you get when setting up 2FA on a service.
Step 3 – Configure Settings (Optional)
Choose your preferred algorithm (SHA-1, SHA-256, SHA-512), digits (6 or 8), and time step (30 or 60 seconds).
Step 4 – Add Token
Click “Add Token” to save your token. The TOTP code appears instantly.
Step 5 – Copy Code
Click the copy icon to copy your code to clipboard.
Step 6 – Use Quick Presets
Click “Google Demo”, “GitHub Demo”, or “Microsoft Demo” to try the tool with preset keys.
Step 7 – Delete Tokens
Remove unwanted tokens with the delete button.
Key Features of the Free TOTP Generator Tool
Our free TOTP generator is packed with professional features:
1. Multiple Token Management
Add multiple 2FA tokens
Store and manage all your authenticator codes in one place
Local storage keeps tokens safe in your browser
2. Standard Compatibility
- RFC 6238 Compliant: Industry standard for TOTP
- Google Authenticator: Compatible with Google’s implementation
- Microsoft Authenticator: Works with Microsoft’s authenticator
- Authy: Fully compatible with Authy
3. Customizable Options
- Algorithms: SHA-1, SHA-256, SHA-512
- Digits: 6 or 8 digit codes
- Time Step: 30 or 60 seconds
4. Visual Timer
- Real-time countdown shows when code expires
- Progress bar with color changes (green → red)
- Auto-refresh when code expires
5. One-Click Copy
- Copy codes to clipboard with one click
- Toast notification confirms copy
6. Quick Presets
- Google Demo: Pre-filled secret key for testing
- GitHub Demo: Pre-filled secret key for testing
- Microsoft Demo: Pre-filled secret key for testing
7. Local Storage
- Tokens saved in your browser
- Persistent across sessions
- No data ever sent to servers
8. Secure Generation
- Web Crypto API for HMAC calculation
- No external dependencies
- 100% client-side processing
Benefits of Using TOTP Generator for 2FA Security
Why Should You Use a TOTP Generator?
1. Enhanced Security
TOTP adds an extra layer of security beyond passwords. Even if your password is compromised, the attacker needs your 2FA code.
2. Time-Based Protection
Codes change every 30-60 seconds, making them useless to attackers after they expire.
3. No Internet Required
TOTP works offline – no internet connection needed once the secret is stored.
4. Standard Compatible
Works with all major authenticator apps including Google Authenticator, Authy, and Microsoft Authenticator.
5. Multiple Tokens
Manage all your 2FA codes in one place.
6. Easy Copy
One-click copy to clipboard for quick entry.
7. Privacy First
All calculations happen locally in your browser. No data sent to servers.
8. Free & Unlimited
No limits on tokens or code generation.
Comparison with Other TOTP Generator Tools
| Features | Our TOTP Generator | Competitor A | Competitor B |
|---|---|---|---|
| Multiple Tokens | ✅ Yes | ❌ No | ✅ Yes |
| SHA-256/SHA-512 | ✅ Yes | ❌ No | ❌ No |
| 8-Digit Codes | ✅ Yes | ❌ No | ❌ No |
| 60-Second Step | ✅ Yes | ❌ No | ❌ No |
| Visual Timer | ✅ Yes | ❌ No | ❌ No |
| Progress Bar | ✅ Yes | ❌ No | ❌ No |
| One-Click Copy | ✅ Yes | ❌ No | ✅ Yes |
| Quick Presets | ✅ 3 presets | ❌ No | ❌ No |
| Local Storage | ✅ Yes | ❌ No | ✅ Yes |
| Offline Support | ✅ Yes | ❌ No | ✅ Yes |
| Dark Mode | ✅ Yes | ❌ No | ❌ No |
| Privacy | ✅ 100% local | ❌ Server | ⚠️ Local |
| Cost | ✅ Free | ✅ Free | ❌ Limited |
Use Cases for the TOTP Generator Tool
1. For Personal 2FA
Generate TOTP codes for your own accounts
Manage multiple 2FA tokens in one place
No need to carry a separate authenticator device
2. For IT Administrators
- Test 2FA implementations
- Generate codes for testing
- Manage multiple test accounts
3. For Developers
- Test TOTP integration in applications
- Validate secret key generation
- Debug 2FA implementations
4. For Security Auditors
- Verify 2FA implementations
- Test TOTP compliance
- Audit authentication systems
5. For Password Managers
- Generate codes for testing
- Complement password management
- Enhance overall security
6. For Training & Education
- Demonstrate 2FA concepts
- Teach time-based authentication
- Security awareness training
Button Functions Explained
Dark/Light Mode Button – Toggle between dark and light themes.
RTL Toggle Button – Switch text direction to RTL for Urdu/Arabic.
Token Name Input – Enter a name for your 2FA token (e.g., “Google”).
Secret Key Input – Enter Base32-encoded secret key from your service.
Algorithm Dropdown – Select SHA-1, SHA-256, or SHA-512.
Digits Dropdown – Select 6 or 8 digit codes.
Time Step Dropdown – Select 30 or 60 seconds.
Add Token Button – Add token to the list and generate code.
Quick Preset Buttons – Google Demo, GitHub Demo, Microsoft Demo.
Copy Code Button – Copy TOTP code to clipboard.
Delete Token Button – Remove token from the list.
Timer Display – Shows remaining seconds before code refreshes.
Progress Bar – Visual countdown indicator.
Frequently Asked Questions
Q1: Is the TOTP generator really free?
Yes, completely free. No registration, no hidden charges, no usage limits.
Q2: What is TOTP?
TOTP stands for Time-Based One-Time Password – a temporary code that changes every 30-60 seconds for 2FA.
Q3: Is this compatible with Google Authenticator?
Yes! It uses the same RFC 6238 standard as Google Authenticator, Authy, and Microsoft Authenticator.
Q4: What algorithms are supported?
SHA-1, SHA-256, and SHA-512. SHA-1 is the most common and compatible.
Q5: What is the secret key?
The secret key (Base32 encoded) is provided when you enable 2FA on a service. It’s used to generate your TOTP codes.
Q6: Can I use 8-digit codes?
Yes! You can switch between 6-digit and 8-digit codes using the Digits dropdown.
Q7: What is the time step?
The time step is how often the code changes. 30 seconds is standard, 60 seconds is also supported.
Q8: Does this work offline?
Yes. Once loaded in your browser, it works without internet access.
Q9: Where are my tokens stored?
Tokens are saved locally in your browser’s LocalStorage. They never leave your device.
Q10: Are my secret keys secure?
Yes. All processing happens locally in your browser. No data is ever sent to any server.
Conclusion
Securing your accounts with two-factor authentication doesn’t have to be complicated. Our TOTP generator gives you everything you need – from time-based one-time passwords to multiple token management, visual timers, and one-click copy. Whether you’re securing personal accounts, testing 2FA implementations, or managing tokens for your team, this tool makes TOTP generation effortless.
Summary
- ✅ Standard compatible – Google Authenticator, Authy, Microsoft Authenticator
- ✅ Multiple tokens – manage all your 2FA codes
- ✅ Customizable – SHA-1, SHA-256, SHA-512, 6/8 digits, 30/60 seconds
- ✅ Visual timer – see when your code expires
- ✅ One-click copy – quick and easy
- ✅ 100% private – nothing leaves your browser
- ✅ Completely free – no limits
Get Started Now
Ready to generate TOTP codes? Start using the tool right now – no sign-up, no hassle. Enter your secret key and get time-based codes instantly. Try the free TOTP generator now and secure your accounts with 2FA!
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Authy – Two-Factor Authentication Guide – Comprehensive guide from Authy explaining two-factor authentication, TOTP, and best practices for securing online accounts. Trusted by millions of users worldwide for 2FA security.
2FA Directory – TOTP Resources – A comprehensive directory of websites and services that support two-factor authentication with TOTP. Includes detailed guides on how to enable 2FA on popular platforms and best practices for TOTP security.