Generator
Generate RFC 6238-compatible TOTP codes in your browser, test authenticator settings, and verify secret, algorithm, digit, and period combinations before you move them into real login flows.
Common setups
Better OTP tools give you practical starting points, not just one raw secret field. Load a realistic setup, then tune the details for your app or provider.
Current competitors are strongest when secret handling feels clear and local. Paste a shared Base32 secret and keep real production secrets limited to trusted sessions.
Secret input is processed in your browser to generate the current TOTP code.
Secret length
16
Token format
6-digit / SHA-1
Refresh window
30s
Live token
Review the code and remaining validity window before copying it into a test flow or validator.
30s remaining
otpauth URI and QR
Strong TOTP tools make scanning and URI handoff easy when you are matching a browser setup to authenticator apps.
otpauth://totp/Coders.sh:user%40example.com?secret=JBSWY3DPEHPK3PXP&issuer=Coders.sh
Setup note
This workbench is best for testing, integration checks, account setup validation, and authenticator compatibility review. Only paste real secrets when you trust the environment you are using.
Why this is better
The strongest OTP generators make algorithm, digit length, refresh window, QR output, and URI export all visible together. That is the workflow this page is built around.
How to Use This TOTP Generator
Add the shared secret, review the current time-based code, and use it in the target authentication flow before the window rotates.
Paste the TOTP secret
Start with the shared secret from the 2FA system or authenticator-compatible setup you want to test.
Review the current time-based code
Let the tool calculate the current one-time password using the same timing model authenticator apps use.
Watch the refresh cycle
Check how the code changes over time so you can validate timing-sensitive auth flows or demo behavior.
Use the code in your target flow
Enter the generated value into your test login, verification step, or debugging workflow before it rotates.
When This Tool Is Most Useful
TOTP generation is most useful during authentication testing, secret verification, and timing-related debugging where seeing the live code cycle matters.
2FA flow testing
Validate login and verification flows that expect a TOTP code without switching back and forth between several tools.
Authenticator-compatible setup checks
Confirm that a shared secret is producing the expected style of code before rolling the setup into a broader workflow.
Time-window debugging
Inspect how codes rotate and expire when troubleshooting timing issues, drift, or validation failures.
Local browser-side generation
Generate the current code in the browser while keeping the secret on the page instead of sending it to another service.
FAQs
What kind of OTP does this generate?
It generates time-based one-time passwords following the TOTP model commonly used by authenticator apps and 2FA systems.What is this most useful for?
It is most useful for testing 2FA flows, validating shared secrets, and debugging timing-based authentication issues.Does it replace an authenticator app?
It can help for testing and inspection, but it is not a full replacement for the everyday account-management role of an authenticator app.Does the secret stay local?
Yes. The tool is designed to generate the code in the browser so you can inspect it without sending the secret somewhere else.