What tools does 2FASolver offer?

2FASolver offers four free browser-based 2FA tools: a TOTP code generator (RFC 6238), a QR code scanner to extract 2FA secrets from QR images, a Base32 encoder/decoder, and a cryptographically random recovery codes generator.

Is 2fasolver.com safe to use?

Yes. All tools run 100% in your browser using the Web Crypto API. No secret keys, QR images, or generated codes are ever sent to our servers. You can even go offline after loading the page.

How do I scan a 2FA QR code with 2FASolver?

Go to the QR Code Scanner tool on 2FASolver.com, then either upload a screenshot of your QR code or use your webcam to scan it live. The tool will extract the secret key automatically and let you use it in the TOTP generator.

What is Base32 encoding and why is it used in 2FA?

Base32 is an encoding scheme that uses only uppercase letters A–Z and digits 2–7. 2FA secret keys are stored in Base32 format (as defined in RFC 4648) because it is case-insensitive and avoids characters that look similar, making it easy to type manually.

How do I generate recovery codes?

Use the Recovery Codes Generator tool on 2FASolver.com. Choose the number of codes (8–16) and the format (XXXX-XXXX, XXXXXXXX, or XXX-XXX-XXX). Codes are generated using the browser's cryptographic random number generator and never leave your device.

Free — No Sign-up Required

Generate Your 2FA Code
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Q: Is 2FASolver compatible with Google Authenticator?

Yes. 2FASolver is fully RFC 6238 compliant and generates identical codes to Google Authenticator, Microsoft Authenticator, Authy, and all other standard TOTP apps.

Enter your secret key and get your live two-factor authentication code right in your browser. No app needed, no data stored.

2FA Secret Key

Code Period

Your 2FA Code (updates automatically)

Code validity Expires in 30s

← Previous code

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Next code →

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🔒 All processing happens in your browser. Your secret key is never sent to our servers.

🔧 Tools

All 2FA Tools

All tools run 100% in your browser — no data ever sent to a server.

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TOTP Generator

The TOTP generator is the main tool at the top of this page. Enter your secret key there to get live codes with a countdown timer.

📷 QR Code Scanner

Upload a 2FA QR code image to extract the secret key, then use it directly in the TOTP generator above.

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Click to upload or drag & drop a QR code image

PNG, JPG, GIF, WebP supported

or scan live from webcam

Extracted Secret Key

Upload a QR code to extract the secret key…

🔒 Image processing is done entirely in your browser using jsQR. No image is uploaded anywhere.

🔢 Base32 Encoder / Decoder

Convert plain text to Base32 (the format used for 2FA secret keys) or decode a Base32 string back to plain text.

Input Text

Result

Result will appear here…

Base32 uses characters A–Z and 2–7 only. Used in RFC 4648 and RFC 6238 (TOTP) for encoding secret keys.

🔑 Recovery Codes Generator

Generate cryptographically random backup codes — just like real recovery codes from services. Store them somewhere safe.

Number of codes

Format

Education

What is Two-Factor Authentication?

2FA adds a second layer of security beyond your password. Even if someone steals your password, they still cannot access your account without the second factor.

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Two Layers of Security

2FA requires something you know (password) and something you have (code). Attackers need both to get in.

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Time-Based Codes (TOTP)

TOTP generates a new 6-digit code every 30–60 seconds using your secret key and the current time.

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The Secret Key

When you enable 2FA, the service gives you a secret key. It generates matching codes on both sides.

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Authenticator Apps

Google Authenticator, Authy, and Microsoft Authenticator store your keys and show live codes — just like 2FASolver.

Process

How 2FA Works

Enter Password

Get Prompted

The site asks for a 6-digit code from your authenticator.

Generate Code

2FASolver computes a code using your secret key + current time.

Access Granted ✓

Both factors verified — you are in, even without a phone.

FAQ

Frequently Asked Questions

🔐 Security & Privacy

Yes. All OTP codes are generated locally in your browser using the Web Crypto API. No sensitive information ever leaves your device. The site always uses HTTPS and follows industry-standard RFC 6238 specifications.

No. 2fasolver.com does not store any secret keys, OTP codes, or personal data. Everything is processed client-side and discarded when you close the tab.

100% locally in your browser. Our servers only serve the HTML/CSS/JS files. They never see your secrets or generated codes. You can go offline after loading the page and it will keep working.

No OTP-related activity is logged. We may collect minimal anonymous analytics (page views) solely to improve site reliability.

🔧 Usage & Technical

It uses TOTP (RFC 6238). Your secret key and the current Unix time are combined via HMAC-SHA1 to produce a 6-digit code. The code refreshes automatically every 30 or 60 seconds, identical to any authenticator app.

TOTP (Time-based) generates codes based on the current time and they expire every 30 seconds. HOTP (Counter-based) generates codes based on a counter that increments with each use. Most services use TOTP.

Most services use 30s codes. If you get an "invalid code" error with 30s, try switching to 60s. Check your service's 2FA setup documentation to confirm which one it uses.

Yes. 2fasolver.com is fully RFC 6238 compliant, so it generates identical codes to Google Authenticator, Microsoft Authenticator, Authy, and all other standard 2FA apps.

When enabling 2FA on a website, it shows a QR code AND a "manual entry key" or "setup key" — a string of uppercase letters and numbers like JBSWY3DPEHPK3PXP. Copy that and paste it into 2FASolver.

The most common cause is clock drift. Make sure your device's time is set to "automatic" or "network time". Also verify the full secret key was copied with no extra spaces or missing characters.

Use your backup/recovery codes if you saved them when you set up 2FA. If not, contact the service's support team and verify your identity through their account recovery process.

Contact

Contact & Suggestions

We are here to help

Have a question about 2FA, found a bug, or want to suggest a new feature? We read every message and usually reply within 24–48 hours.

Or email us directly:

✉️ hello@2fasolver.com

🔒Your message is sent securely. We never share your email.

⚡We typically reply within 24–48 hours.

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