6-Digit PIN Generator
Generate a truly random 6-digit PIN in your browser — one million combinations, zero human bias. Free, private, nothing stored.
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Six digits is the modern PIN standard: phone lock screens default to it, SIM cards use it, and banks increasingly require it. The jump from four digits matters more than it looks — 1,000,000 combinations instead of 10,000, a hundredfold improvement — but only if the code is actually random. Human-chosen 6-digit PINs collapse back into a small predictable set: dates (DDMMYY, MMDDYY), years padded with zeros, straight runs like 123456, and repeats like 111111. Leaked-data studies show 123456 is as dominant among 6-digit PINs as 1234 is among 4-digit ones. This generator draws your PIN uniformly from all one million possibilities using your browser's cryptographic random number generator, so no digit carries a pattern an attacker can exploit. Combined with the attempt limits phones and SIMs enforce — typically wiping or locking after around ten failures — a random 6-digit PIN is a genuinely solid lock. Generation is entirely local; nothing is transmitted, logged, or stored.
Frequently Asked Questions
How many combinations does a 6-digit PIN have?
One million — 000000 through 999999. Paired with the strict attempt limits phones and SIM cards enforce, that is enough to make guessing impractical, provided the PIN is random rather than a date, a run like 123456, or a repeated digit.
How much better is a 6-digit PIN than a 4-digit one?
A hundred times more combinations: 1,000,000 versus 10,000. With a device that allows only a handful of wrong attempts, that turns an attacker’s already-poor odds into negligible ones. The upgrade only pays off if the PIN is random — a 6-digit birthday is barely better than a 4-digit one.
Where are 6-digit PINs used?
Phone lock screens (the iOS and Android default), SIM card locks, banking apps and card PINs in many countries, authenticator fallback codes, and smart locks. Anywhere you are offered a choice of PIN length, six digits should be your minimum.
Is a random 6-digit PIN safe for my phone?
Yes. Modern phones escalate delays and can wipe after repeated failures, so an attacker gets very few tries — and against a uniform random PIN, each try has a one-in-a-million chance. The realistic risks become shoulder-surfing and smudge patterns, so shield the screen when typing it in public.
What 6-digit PINs should I avoid?
Dates in any format (birthdays are the biggest offender), years padded with zeros, sequences like 123456 or 654321, repeats like 111111, and keypad patterns like 147258. Leaked-PIN studies show these dominate real usage, which makes them the first guesses an attacker tries.
Can I use this for my SIM PIN or banking app?
Yes — it generates uniformly random numeric codes entirely in your browser, with nothing transmitted or stored. Set it through the official SIM settings or your banking app, use a different random PIN per context, and store them in your password manager’s secure notes if you worry about forgetting.
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Written & reviewed by Andrew Ivanov, Fractional CTO. Last reviewed .