🔐 CRYPTOGRAPHICALLY SECURE — uses crypto.getRandomValues()

PIN Generator

Generate cryptographically random PINs for banks, phones, and apps

🔒 Passwords generated and stored locally — never transmitted.
📏 PIN Length
⚙️ Security Options
Exclude Sequential Digits
Rejects PINs with 123, 987, etc.
Exclude Repeating Digits
Rejects PINs with 000, 111, etc.
Avoid Common PINs
Excludes 0000, 1234, 1111, etc.
Your PIN
—
6
Digits
1,000,000
Combinations
19.9
Entropy (bits)
~17 min
Crack Time*

*At 1,000 guesses/second — typical ATM rate limiting

📋 Generate 5 PINs
⚠️ PIN Security Facts:
A 4-digit PIN has only 10,000 combinations — an attacker with unlimited attempts could try all in seconds. Most systems limit attempts to 3-10 before locking, which makes even 4-digit PINs practical. But always use the maximum allowed length.

❌ Most Common PINs to Avoid

0000 · 1111 · 1234 · 4321 · 0123 · 9999 · 1212 · 7777 · 2222 · 3333 · 4444 · 5555 · 6666 · 8888 · 2580 · 1357 · 0852 · 1470 · 2468 · 9876 · 1004 · 2000 · 2001 · 1984 · 0007 · 1122 · 1313 · 2323 · 6969 · 6666

These 30 PINs account for ~25% of all PINs used — attackers try these first.

How to Create a Secure PIN in 2025

A PIN (Personal Identification Number) is a short numeric code used to authenticate access to bank accounts, phone lock screens, apps, and secure facilities. Despite being short, a random PIN is secure — as long as the system limits guessing attempts. PassKit.in generates cryptographically random PINs using crypto.getRandomValues() and automatically excludes the most common PINs that attackers try first.

PIN Length and Security

The security of a PIN depends almost entirely on its length and randomness. Here is what each PIN length gives you:

Most Common PINs to Avoid

Research on leaked PIN databases shows that people overwhelmingly choose predictable PINs. The top 20 most common 4-digit PINs — including 1234, 0000, 1111, 1212, and birth-year patterns — account for over 25% of all PINs. An attacker who tries just these 20 combinations has a 1-in-4 chance of guessing a randomly-chosen user's PIN.

PassKit.in's "Avoid Common PINs" option automatically excludes the top 100 most commonly used PINs, as well as sequential patterns (1234, 4321) and repeating digits (1111, 2222).

When Is a PIN Safe Enough?

A PIN is secure when the system enforces lockout after a small number of wrong guesses (typically 3–10). With lockout enforced, even a 4-digit PIN is practically uncrackable because an attacker can only try a handful of guesses. Where PINs are less safe is when a device is stolen and the PIN hash can be brute-forced offline — for those scenarios, use a 6-digit or longer PIN.

Frequently Asked Questions

What is a good PIN number?

A good PIN is completely random — generated by a computer, not chosen by a human. Avoid any PIN that represents a date, a year, a phone number pattern, or a sequence. A 6-digit random PIN generated by PassKit.in using crypto.getRandomValues() is the best balance of security and usability for most applications.

Can someone guess my PIN?

If your PIN is random and the system locks after a few wrong guesses, your PIN is very hard to guess — a 4-digit PIN allows only 3 tries out of 10,000 (0.03%). The danger is using a common PIN like 1234 or 0000, which an attacker will always try first. PassKit.in's PIN generator avoids these common patterns automatically.

Is 4-digit or 6-digit PIN more secure?

A random 6-digit PIN is 100× more secure than a random 4-digit PIN (1,000,000 vs 10,000 combinations). Most security experts recommend 6-digit PINs for phone lock screens and banking apps. If your service supports it, always choose 6 digits over 4.