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Numeric code: otp / totp code generator
OTP (One-Time Password) code of 6 digits, 2FA and TOTP compatible format (RFC 6238). Generation happens directly in your browser, in complete privacy and without any installation.
BACK_TO_TOOLSGENERATOR_SHEET / OTP
GENERATOR MODULE — OTP
OTP / TOTP code generator
10 digits · pool : 10 characters
OTP (One-Time Password) code of 6 digits, 2FA and TOTP compatible format (RFC 6238).
Instant generation
100% local
No sign-up
EXAMPLES
Examples generated at different lengths
Previews produced with the 10 digits pool. Regenerated on each page load.
EX_014 CHARACTERS
5119
EX_026 CHARACTERS
597102
EX_038 CHARACTERS
76864472
EX_0410 CHARACTERS
4941024366
RECOMMENDATIONS
Which length to choose
Recommended lengths depending on the use case. The longer your numeric code, the more resistant it is to attacks.
REC_01
4
Short PIN
4-digit code (bank card, basic smartphone). Low security.
REC_02
6
Standard PIN
6-digit code recommended for smartphones and banking apps.
REC_03
8
Reinforced code
8-digit code for sensitive accounts that only accept digits.
REC_04
12
Maximum code
Long numeric code when the interface allows it. Very strong for a PIN.
METHODOLOGY
How to generate a secure numeric code
01
STEP_01
Choose the length
Adjust the length slider according to the intended use of the numeric code. The longer, the more secure.
02
STEP_02
Refine the options
Enable ambiguous character exclusion if you need to type it manually (0/O, 1/l/I).
03
STEP_03
Copy and use
Click copy to retrieve the numeric code from the clipboard. Regenerate as many times as needed.
USE_CASES
What this generator is used for
USE_01
Smartphone PIN code
Screen lock for phones, tablets or mobile banking apps.
USE_02
Bank card
4-digit confidential code for payment cards.
USE_03
2FA authentication
Temporary codes (OTP) or numeric backup codes for two-factor authentication.
SEO_CONTENT
Everything about otp / totp code generator
Complete guide: use cases, benefits, privacy and complementary tools.
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Generate a strong password
Create a robust password in one click mixing lowercase, uppercase, digits and symbols, in line with NIST and security best practices. Generation happens directly in your browser, in complete privacy and without any installation. Also discover our strong password generator.
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Generate a memorable passphrase
Combine several random words to get a passphrase that is both long, secure and easy to remember. Generation happens directly in your browser, in complete privacy and without any installation. Try our passphrase generator.
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Free generation, no sign-up required
Unlike other online tools, our generator is 100% free. No sign-up, no email required. Generate as many numeric codes as you need, with no quota or limitation. Generation happens directly in your browser, in complete privacy and without any installation.
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Secure and private generation
Your numeric codes are produced locally in your browser via the Web Crypto API, a cryptographically secure random source. No data is sent to a remote server, no trace is kept. Generation happens directly in your browser, in complete privacy and without any installation. privacy policy.
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Test the strength of an existing password
Check the robustness of a password you already use: length, character diversity and estimated resistance to brute-force attacks. Generation happens directly in your browser, in complete privacy and without any installation. Use our password tester.
GENERATOR_FAQ
Frequently asked questions — OTP / TOTP code generator
Le code numérique est produit dans votre navigateur avec l'API Web Crypto (crypto.getRandomValues), qui fournit un aléa cryptographiquement sûr — la même source que celle utilisée par Bitwarden, 1Password ou KeePassXC. Aucune donnée n'est envoyée à un serveur.
Le pool utilisé pour ce générateur est : 10 chiffres. Soit 10 caractères distincts au total, ce qui correspond à environ 3.3 bits d'entropie par caractère.
Avec le pool de 10 caractères de ce générateur, un code numérique de 6 caractères atteint environ 20 bits d'entropie. Au-delà de 80 bits, un mot de passe est considéré comme inviolable par force brute avec le hardware grand public 2026 (GPU type RTX 4090).
Pour un PIN, 4 chiffres correspondent au minimum (cartes bancaires), 6 chiffres sont recommandés pour les smartphones et la 2FA (TOTP/OTP), et 8 chiffres ou plus pour les comptes sensibles. Évitez les séquences évidentes : 1234, 0000, 1111, 1212, votre date de naissance.
Non. Convertly PASSWORD fonctionne 100 % localement dans votre navigateur, conforme RGPD. Le code numérique généré n'est jamais transmis à un serveur, ni stocké après le rechargement de la page. Vous pouvez même utiliser le générateur hors ligne après le premier chargement.
Oui, Convertly PASSWORD est entièrement gratuit, sans inscription, sans publicité intrusive et accessible sur mobile, tablette et ordinateur. Open source côté logique de génération, hébergé en Europe (Vercel).
Protect all your accounts with unique passwords
Convertly PASSWORD generates your passwords locally in your browser, no server, no sign-up.
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