Because servers have rate limits, you want the most likely codes first. Here are the top 20 OTPs statistically (based on breached 2FA logs):
You can find "Top 10k 6-digit OTPs" files on GitHub repositories like SecLists (in the Passwords directory) or wordlists by Daniel Miessler. These are free, legal, and widely used for ethical testing.
A 6-digit OTP is a type of one-time password that consists of six numeric characters. This code is usually generated randomly and is valid for a short period, often between 30 seconds to a few minutes. The purpose of a 6-digit OTP is to add an additional layer of security to the authentication process, making it more difficult for unauthorized users to gain access to sensitive information.
Using crunch (Linux):
crunch 6 6 0123456789 -o 6-digit-otp.txt
This generates every combination from 000000 to 999999 in ~7 MB.
Using seq (Linux/Mac):
seq -f "%06g" 0 999999 > otp_wordlist.txt
Using Python (One-liner):
with open('otps.txt', 'w') as f: f.write('\n'.join(f"i:06d" for i in range(1000000)))
Some older Wi-Fi captive portals or internal systems use 6-digit PINs for access. A wordlist aids in testing credential strength.
Searching for a “6 digit OTP wordlist free” is a sign that you are curious about authentication security. That curiosity is valuable – but only if channeled ethically. The reality is that you rarely need a pre-made list. Generating one is trivial, and against modern systems, a raw brute-force attack with a full million-entry wordlist will almost always fail due to rate limiting.
Instead of focusing on the wordlist itself, focus on understanding why 6-digit OTPs are secure (or not). Study:
If you are a legitimate penetration tester, always operate under a signed contract or within a lab environment. If you are a student, practice on sites like HackTheBox or TryHackMe – never real-world targets.
And remember: A free wordlist won’t make you a hacker. Ethics and knowledge will make you a security professional.
Last updated: October 2025. This article is for educational purposes only. Always obtain written permission before testing any system. 6 digit otp wordlist free
A 6-digit OTP wordlist is a text file containing every possible numerical combination from 000000 to 999999. In cybersecurity, these lists are primarily used for brute-force testing or verifying the strength of authentication systems. Key Features of a 6-Digit Wordlist
Total Combinations: There are exactly 1,000,000 unique combinations.
Size: A standard .txt file containing all 1 million 6-digit codes (separated by newlines) is approximately 7 MB to 8 MB.
Format: Usually starts at 000000 and ends at 999999 in sequential order, though some specialized lists prioritize "common" codes like 123456, 111111, or dates. Where to Find or Generate One
You don't typically need to download these because they can be generated in seconds using simple tools:
Crunch: A standard command-line tool used to create wordlists. Command: crunch 6 6 0123456789 -o 6digit.txt Because servers have rate limits, you want the
Python Scripts: A basic loop can generate the list and save it to a file.
GitHub: Many security repositories host pre-made wordlists for common PINs and OTPs. Security Reality
While a 1-in-a-million chance sounds small, modern systems prevent "wordlist" attacks by using rate limiting or account lockouts. Most services will lock an account after 3 to 5 failed attempts, making a full wordlist useless for unauthorized access.
Are you looking to test your own application's security, or do you need a Python script to generate this list for you?
What Is a 6-Digit Code? Uses, Security & Best Practices Explained
Cybersecurity instructors often demonstrate how weak 6-digit codes (like 123456, 111111, 000000) are vulnerable. A partial wordlist of common patterns is sufficient here. You can find "Top 10k 6-digit OTPs" files
After a certain number of failed attempts, the account may be locked for a specific period (e.g., 30 minutes) or until the user verifies their identity via another method.
hydra -l username -P 6digit.txt target.com http-post-form "/login:user=^USER^&pass=^PASS^:F=incorrect"