Developer tool
Generate a random password, passphrase, or PIN
Generate a random password, passphrase, or PIN in your browser. Uses cryptographically secure randomness. Nothing is sent or stored.
Create a strong random password, a memorable passphrase, or a PIN on this page. Generation stays on your device.
- Runs locally
- No uploads
- Instant
- Free
Generated locally in your browser. No password is sent to our server. No generated password is stored.
Estimated entropy is based on the character set and length (or word-list size and word count). Requiring each selected type slightly changes the exact distribution.
Short passwords are easier to guess. Prefer 16 characters or more when a service allows it.
Passphrases use a fixed English word list (EFF large list, 7776 words). The words themselves are not translated. Security comes mainly from enough random words, not from extra numbers.
A PIN is much shorter than a typical account password and has far fewer combinations. Do not treat a PIN as a substitute for a long password.
How it works
- 01 Choose Password, Passphrase, or PIN.
- 02 Set length, character types, word count, or PIN options.
- 03 Press Generate, then copy what you need. Nothing is saved.
Why NEXNARA
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Private
Your data stays in your browser.
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Instant
Results appear immediately.
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No uploads
Nothing is sent to a NEXNARA server.
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Works anywhere
No installation required.
Learn more
What is this password generator?
This page creates random passwords, passphrases, and PINs in your browser with cryptographically secure random generation (CSPRNG). Password, passphrase, and PIN share one engine so you do not need three separate tools.
How to generate a password
Choose Password, Passphrase, or PIN. Adjust length or word count, then press Generate. Copy copies the current result. Generate several at once if you need a list. Refreshing the page clears every generated value.
What makes a strong password?
A strong password is long, random, and unique to that service. Mixing uppercase, lowercase, numbers, and symbols helps when a site requires it, but length and randomness matter more than a few extra symbols.
Why use random passwords?
People reuse short, predictable phrases. A generator picks from the full character set without that bias. Use a different password for each account, and consider a password manager plus MFA/2FA where it is offered. This page does not recommend a specific manager product.
What is a passphrase?
A passphrase is several random words joined together, such as correct-horse-battery-staple. It can be easier to type than a dense symbol string while still offering many combinations when the words are chosen from a large list.
Password vs passphrase
A random character password packs more variety per character. A passphrase is often easier to remember or type. Both can be reasonable if they are long enough and unique. Neither should be reused across sites.
What is password entropy?
Entropy is a way to talk about how many possible values a generator can produce. Higher estimated entropy means a larger search space. It is not a promise that a password cannot be guessed, and this page reports an estimate, not a laboratory measurement.
Why password length matters
Each extra random character multiplies the number of possible passwords. A 16-character password from a mixed set is typically much harder to brute-force than an 8-character one. Very short passwords stay weak even with symbols.
What does CSPRNG mean?
CSPRNG means cryptographically secure pseudo-random number generation. This tool uses the Web Crypto method crypto.getRandomValues() in your browser. It does not use Math.random() for passwords, passphrases, or PINs.
Why a PIN is weaker than a long password
A 4-digit PIN has 10,000 possibilities. A 6-digit PIN has a million. That can be enough for a device lock with extra protections, but it is not a stand-in for a long account password. Leading zeros are kept, because a PIN is a string of digits, not a number.
Local generation and privacy
Password generation itself is local. Generated values are not sent to our server, are not saved in cookies, local storage, or a database, and are not written to analytics. Other parts of the site, such as ads, may still use the network. Refreshing the page discards results.
FAQ
Is this password generator secure?
Generation uses cryptographically secure randomness in your browser (crypto.getRandomValues). No generator can make an “unhackable” password. Strength still depends on length, character set, and using a unique password per service.
Are generated passwords sent to a server?
No. Password generation itself is local. Values are not uploaded to NEXNARA.
Are generated passwords stored?
No. This tool does not keep a password history in local storage, cookies, or on a server. Refreshing the page clears what you generated.
What password length should I use?
16 characters is a practical default when a site allows it. Longer is stronger. Very short passwords stay weak even if they include symbols.
Should I include symbols?
Include them when the service allows or requires them. Length still matters more. You can exclude characters a site rejects.
What is a passphrase?
A passphrase is several random words from a large list, joined by a separator. This page uses an English word list; the UI is translated, the words are not.
Is a passphrase secure?
It can be, when you use enough random words from a large list. Three words is on the weak side. Extra numbers help a little; word count is the main factor.
What is password entropy?
Estimated entropy describes how large the set of possible results is. Higher bits mean more combinations. It is an estimate, not a guarantee.
Can I generate multiple passwords?
Yes. Choose 1, 5, 10, or 20. Each value is generated independently. You can copy one, copy all, or download a text file.
Can I generate a PIN?
Yes. Use PIN mode for 4, 6, 8, or a custom digit length. PINs stay as text so leading zeros are kept. A PIN is not a replacement for a long password.
Why should I use a unique password?
If one site leaks a password and you reused it, other accounts are exposed. Unique passwords, a password manager, and MFA/2FA where available reduce that risk.