What length PIN should I use?

4-digit PINs are standard for bank cards. For app or device PINs, 6 digits provides significantly more security.

Is the PIN truly random?

The PIN is generated using Math.random() — sufficient for typical use but not for high-security cryptographic applications.

Why is 10 the max when avoiding repeats?

There are only 10 unique digits (0–9), so a 10-digit PIN without repeats uses them all. A longer unique PIN is impossible.

Random PIN Generator

Generate a random numeric PIN of any length (4–12 digits). Free, runs in your browser, never stored.

By AbraCalc Editorial Team · Reviewed by AbraCalc Methodology Review · Last reviewed: 2026-06-26 2 sources

Embed this tool on your site

<iframe src="https://abracalc.com/generator/random-pin-generator/embed.html" width="340" height="320" style="border:1px solid #e6e1f0;border-radius:12px" loading="lazy"></iframe>

Cite this tool

APA

AbraCalc. (2026). Random PIN Generator [Online calculator]. Retrieved from https://abracalc.com/generator/random-pin-generator/

BibTeX

@misc{abracalc-random-pin-generator, author = {AbraCalc}, title = {Random PIN Generator}, year = {2026}, howpublished = {\url{https://abracalc.com/generator/random-pin-generator/}} }

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How to use this tool

Choose the PIN length (4 digits is standard for cards, 6 for many apps).
Optionally enable no-repeated-digits mode.
Click Calculate to generate your PIN.
Note: PINs capped at 10 digits when repeated digits are disabled.

Generate a random numeric PIN for ATM cards, door codes, app authentication, or any situation requiring a short numeric secret. Everything runs in your browser — nothing is transmitted.

How it works

A PIN (Personal Identification Number) is a short numeric code used to secure devices, accounts, and physical access systems. This tool generates a cryptographically random PIN of the length you choose, from 4 to 12 digits.

Enter your desired PIN length and optionally enable the option to avoid repeated digits. The generator produces a fresh PIN each time you click generate, and nothing is stored or transmitted.

Use this tool when you need a quick secure PIN for a new device, a test account, or any scenario where you need a random numeric code on demand. The avoid-repeated-digits option is useful for systems that reject PINs like 1122 or 4444.

Worked example

Generate a 6-digit PIN with no repeated digits

Set PIN length to 6.
Check the 'Avoid repeated digits' option.
Click Generate.
Copy the result, e.g. 7 3 9 1 5 2.

A 6-digit PIN such as 739152 where every digit is unique.

Common mistakes to avoid

Setting the length to 4 for high-security uses -- for anything beyond a simple device lock, use at least 6 digits.
Forgetting to copy the PIN before navigating away -- there is no history, so copy it immediately.
Using the same generated PIN for multiple accounts -- generate a fresh one for each use.

Key terms

PIN: Personal Identification Number -- a short numeric passcode used to authenticate a user or unlock a device.
Repeated digit: A digit that appears more than once in the PIN, e.g. 1 appearing twice in 112358.

Frequently asked questions

What length PIN should I use?: 4-digit PINs are standard for bank cards. For app or device PINs, 6 digits provides significantly more security.
Is the PIN truly random?: The PIN is generated using Math.random() — sufficient for typical use but not for high-security cryptographic applications.
Why is 10 the max when avoiding repeats?: There are only 10 unique digits (0–9), so a 10-digit PIN without repeats uses them all. A longer unique PIN is impossible.