4-Digit PIN Generator
Generate a truly random 4-digit PIN in your browser — no birthdays, no patterns, no bias. Free, private, nothing stored.
Click to copy
Four digits is the classic PIN format — bank cards, door codes, voicemail, luggage locks — and it is also the format people choose worst. Studies of leaked PIN datasets show the same handful of codes dominating: 1234 alone accounts for a startling share of all PINs, followed by 1111, 0000, and birth years. An attacker who gets three guesses tries exactly those. A random 4-digit PIN fixes the one thing you control: it is drawn uniformly from all 10,000 combinations by your browser's cryptographic random number generator, so it carries no date, no pattern, and no bias for an attacker to exploit. Remember what 10,000 combinations means: the protection comes from the system limiting wrong attempts — a card that swallows itself after three failures is safe with a random PIN, while a code that can be guessed without limit is not safe at any 4-digit value. Where a system accepts more digits, use the main PIN generator and go longer. Generation is entirely local; no PIN is ever transmitted or stored.
Frequently Asked Questions
How many combinations does a 4-digit PIN have?
Exactly 10,000, from 0000 to 9999. That is a small space, which is why 4-digit PINs are only safe on systems that strictly limit wrong attempts — a bank card that locks after three failures, for example. The randomness of your PIN determines whether those first three guesses have any chance of hitting.
What are the most common 4-digit PINs I should avoid?
Leaked-PIN research consistently finds 1234, 1111, 0000, 1212, and 7777 among the most used, along with birth years (19xx, 20xx) and MMDD dates. Together, a few dozen such codes cover a large fraction of all real-world PINs. A randomly generated PIN sidesteps the entire list by construction.
Is a random 4-digit PIN actually safer?
Yes, meaningfully. Attackers with a few guesses try the popular codes and personal dates first; a uniform random PIN is no more likely to be 1234 than 8371. Randomness converts the attacker’s smart first guesses into blind ones — which is all a 4-digit code can offer, so take it.
What is the best 4-digit PIN?
There is no “best” value — any specific recommendation would immediately become a bad choice. The best 4-digit PIN is one selected uniformly at random and not reused across cards and devices. Generate one here, and generate a different one for each card or lock.
Can I use this for my bank card or ATM PIN?
Yes. The PIN is generated in your browser with crypto.getRandomValues() and never transmitted or stored, so it is safe to use for a card. Change it through your bank’s official channels, avoid reusing it elsewhere, and never share it — banks will not ask for your PIN by phone or text.
Should I use more than 4 digits when I can?
Always. Each added digit multiplies the combinations by ten — 6 digits means 1,000,000 possibilities. Phones, SIM locks, and many safes accept 6 or more digits; use the 6-digit generator or the main PIN generator for lengths up to 12.
More generators
- 8-Character Password Generator
- 10-Character Password Generator
- 12-Character Password Generator
- 14-Character Password Generator
- 15-Character Password Generator
- 16-Character Password Generator
- 20-Character Password Generator
- 24-Character Password Generator
- 32-Character Password Generator
- 64-Character Password Generator
- Password Generator (No Special Characters)
- Alphanumeric Password Generator
- Easy-to-Read Password Generator
- Wi-Fi Password Generator
- Random PIN Generator
- 6-Digit PIN Generator
Written & reviewed by Andrew Ivanov, Fractional CTO. Last reviewed .