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PIN Generator
Use this free pin generator to create a secure, random PIN in seconds. Pick a length from 4 to 12 digits, block repeated digits and sequential runs, and generate up to 10 PINs at once. Every PIN is made on your device and never sent anywhere, so the PIN you see is yours alone.
Most cards and phones accept 4 to 6 digits; longer PINs are safer wherever they are allowed.
How it works
A PIN, short for personal identification number, is a short string of digits that proves you are who you say you are. It guards phone lock screens, bank cards, safes, and door locks. Its strength comes almost entirely from its length and its randomness: a PIN built from a birthday, a house number, or a simple pattern is far weaker than its length suggests, because an attacker tries the obvious choices first.
The math is simple. Each position in a PIN can hold any of the 10 digits, 0 through 9, so the number of possible PINs is 10 multiplied by itself once for each digit. A 4-digit PIN has 10 × 10 × 10 × 10 = 10,000 combinations. A 6-digit PIN has 1,000,000. An 8-digit PIN has 100,000,000, and a 12-digit PIN has 1,000,000,000,000 — one trillion. Every digit you add multiplies the total by 10, which is why a 6-digit PIN is 100 times harder to guess than a 4-digit one.
4 digits = 10,000 · 6 digits = 1,000,000 · 8 digits = 100,000,000
The two optional rules make your PIN harder to guess in a different way. "No repeated digits" means each digit appears at most once, so 1123 or 9009 can never come out; with this rule on, a 6-digit PIN has 10 × 9 × 8 × 7 × 6 × 5 = 151,200 combinations instead of 1,000,000, which is fewer in total but removes the patterns people guess first. "No sequential runs" blocks any three digits in a row that count up or down by one, such as 123, 456, or 987. Both rules are on the safe side of a small trade-off: they shrink the pool slightly, but they remove exactly the PINs an attacker tries first.
The strength meter reads the number of combinations the current settings allow. Under 100,000 combinations it shows Weak, from 100,000 to under 1,000,000 it shows Fair, from 1,000,000 to under 100,000,000 it shows Strong, and 100,000,000 or more shows Very strong. A plain 4-digit PIN is Weak by this measure, which is honest: 10,000 guesses is nothing to a computer. That does not mean a 4-digit PIN is useless — a phone that locks after five wrong tries makes guessing impractical — but it does mean you should use six digits or more wherever the device allows it.
Everything happens in your browser. The generator uses crypto.getRandomValues, the secure random source built into modern browsers, and falls back to Math.random only on a very old browser that lacks it. No PIN is ever sent to a server, saved in a file, or stored in a cookie. Copy a PIN, put it where it belongs, and close the page when you are done.
Worked example
You need a new PIN for a safe that accepts 6 digits. You set the length to 6 and leave both optional rules unticked. One PIN the tool generated with exactly those settings is 483920. Do not use this published example as your own PIN; generate a fresh one above.
Step 1: Count the combinations. Six positions, each with 10 possible digits, gives 10 × 10 × 10 × 10 × 10 × 10 = 1,000,000 combinations.
Step 2: Check the rules. The PIN 483920 has no digit repeated and no three digits that count up or down in a row, so it would pass both optional rules as well.
Step 3: Read the strength. 1,000,000 combinations sits at the start of the Strong band, so the meter shows Strong.
Step 4: Compare with a 4-digit PIN. A 4-digit PIN has only 10,000 combinations, so the 6-digit PIN is 100 times harder to guess.
The tool reports the same result: 1,000,000 combinations — Strong. If you ticked "no repeated digits" as well, the count would fall to 151,200 combinations and the meter would show Fair — fewer combinations in total, but none of them a lazy pattern. For a safe or a bank card, six digits with the sequential-run rule on is a good balance of safety and memorability.
FAQ
How many combinations does a 4-digit PIN have?
A 4-digit PIN has 10,000 possible combinations, because each of the four positions can hold any of the 10 digits from 0 to 9, and 10 × 10 × 10 × 10 equals 10,000. That sounds like a lot, but a computer can try all 10,000 in a fraction of a second, which is why a 4-digit PIN is only suitable for low-risk uses such as a phone lock screen with a limited number of attempts.
Is a 6-digit PIN much safer than a 4-digit PIN?
Yes. A 6-digit PIN has 1,000,000 possible combinations, which is 100 times more than a 4-digit PIN. Each extra digit multiplies the number of combinations by 10, so the jump from 4 to 6 digits is large. Use 6 digits or more for anything that matters, such as a bank card or a safe, and use a longer PIN wherever the device or service allows it.
Should I avoid PINs with repeated digits or sequences like 1234?
Yes. PINs such as 1234, 1111, 0000, and 1212 are among the first guesses anyone tries, and studies of leaked PINs show that a small set of common choices covers a large share of real PINs. Tick the no repeated digits and no sequential runs options in this generator to rule out the most guessable patterns, and never use a birth year, a house number, or part of your phone number as a PIN.
Can I use the same PIN for several accounts?
No. Reusing one PIN across accounts means that learning it once gives access to everything. Give each important account its own PIN, and store them in a password manager or in a safe place only you can reach. If you must remember a PIN without help, pick one the generator made for you and repeat it a few times a day until it sticks, rather than choosing a date or a pattern.
Are the PINs generated here random and private?
Yes. Every PIN is generated in your browser using your device's secure random number generator, crypto.getRandomValues, and is never sent to a server or stored anywhere. Nobody else can see the PINs you generate, and closing the page removes them from view. Do not share a screenshot of your PINs, and generate fresh ones if you think someone else has seen them.