Secure random PINs from 4 to 8 digits for cards, phones, and apps
A 4-digit PIN has 10,000 possible combinations (0000-9999). For ATM cards and physical devices where attempts are limited to 3-5 tries before lockout, this provides adequate security. However, for digital accounts without attempt limits, a 4-digit PIN can be brute-forced in seconds. Use 6+ digit PINs or full passwords for digital accounts, app locks, and any situation where attempt limiting is not enforced.
According to a study analyzing 3.4 million leaked PINs, the most common 4-digit PIN is 1234, used by nearly 11% of people. The top 10 most common PINs are: 1234, 1111, 0000, 1212, 7777, 1004, 2000, 4444, 2222, and 6969. Birth years (19XX) are also extremely common. If your PIN is any of these, change it immediately — attackers try these first.
Absolutely. Studies show that 1234, 0000, 1111, and birth years make up a significant portion of all PINs used. About 26% of all PINs can be guessed using just 20 common combinations. KeyForge generates truly random PINs using your device's cryptographic random number generator, avoiding these predictable patterns entirely.
Longer PINs are exponentially more secure. A 4-digit PIN has 10,000 combinations, a 6-digit PIN has 1,000,000, and an 8-digit PIN has 100,000,000. For ATM cards, 4 digits is standard. For phone unlock codes, use at least 6 digits. For high-security applications like safe combinations or financial apps, use 8 digits when possible.
Yes. KeyForge uses the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers sourced from your operating system's entropy pool. The generation happens entirely in your browser — no PIN is ever sent to a server or stored anywhere. Refresh and generate as many as you need.
A PIN (Personal Identification Number) is your first line of defense for ATM cards, phone locks, and app authentication. But most people choose terrible PINs. Research shows that just 20 PIN combinations account for over 26% of all 4-digit PINs in use. Attackers know this and try the most common PINs first.
Never use any of these as your PIN:
The best PIN is a truly random one — which is exactly what this generator creates. If you need to memorize it, try associating the random digits with a phrase or mental image rather than choosing digits that already mean something to you. A random 4-digit PIN that you memorize is always more secure than a meaningful one that an attacker could guess.
If your device or service supports 6 or 8-digit PINs, use them. Each additional digit multiplies the possible combinations by 10. A 6-digit PIN has 1 million combinations — 100x harder to crack than a 4-digit PIN. Most modern smartphones support 6-digit PINs by default, and many banking apps now accept 6-8 digit codes.