This free password generator creates strong, random passwords directly in your browser. Nothing is sent to a server, nothing is stored, and no account is required. Adjust the length, pick your character types, and copy — or generate up to 50 at once.
Why a strong password generator matters
Credentials remain one of the main ways attackers get in. In the 2026 Verizon Data Breach Investigations Report, credential abuse appears somewhere in 39% of all breaches.
Something did change that year, and it is worth stating plainly. Vulnerability exploitation overtook stolen credentials as the single biggest entry point for the first time in 19 years, at 31% of breaches.
That does not make passwords a solved problem. Identity-based entry points combined — phishing at 16% plus credential abuse at 16% — still edge out vulnerabilities at 32%.
Reused passwords turn one breach into many
A password only used once fails once. The same password across a dozen accounts turns a single leak at the weakest site into access everywhere else.
Attackers automate this. They take credentials from one breach and replay them against hundreds of other services, which is why a unique value per account matters more than any clever pattern.
This is the practical case for using a password generator at all: it makes a distinct password per account the path of least effort rather than a chore.
Human-invented passwords are predictable
People reach for the same shapes: a capital at the front, a familiar word in the middle, a digit and a punctuation mark at the end. Cracking tools encode those shapes as rules and try them first.
A password generator has no such habits. Every position is chosen independently, which is precisely what makes the result expensive to guess.
Length beats complexity
NIST settled this argument in SP 800-63B. Section 3.1.1.2 states that verifiers“SHALL NOT impose other composition rules (e.g., requiring mixtures of different character types) for passwords.”
In other words, the national standards body explicitly rejects forced character-type mixing. What it requires instead is length: a minimum of 15 characters when a password is the only factor.
What is a password generator?
A password generator is a tool that creates a random password from a character set you choose, using a cryptographically secure source of randomness. Unlike a password you invent, a generated password has no pattern, no personal meaning, and no reuse.
How random password generation actually works
A password generator asks the operating system for random bytes, maps each byte onto your selected character set, and repeats until it reaches the requested length.
The mapping step matters more than it looks. Taking a random byte modulo the alphabet size biases the result toward the first few characters whenever the alphabet is not a power of two — which is nearly always. This tool uses rejection sampling instead, so every character is equally likely.
Cryptographic randomness versus pseudo-randomness
Browsers expose two sources of randomness, and only one is safe here.
Math.random() starts from a seed and runs a deterministic algorithm. Recover the seed and you can reproduce the entire sequence. It is fine for shuffling a playlist and unacceptable for a password.
crypto.getRandomValues() draws from the operating system's entropy pool, fed by hardware noise and timing jitter. There is no seed to recover. Every value on this site comes from it.
What password entropy means
Entropy measures how many guesses an attacker needs, expressed in bits. Each additional bit doubles that number.
A 16-character password drawn from 85 possible characters carries about 103 bits. That figure appears live above the settings as you change them.
Password generator versus passphrase generator
A password generator produces a dense string of characters. A passphrase generator produces several random words joined together.
Passphrases reach comparable entropy through length rather than density, which makes them far easier to type on a phone or read aloud. Use a password where software fills it in for you, and a passphrase where a human has to handle it.
How to use this password generator in 4 steps
Step 1 — Set your password length
Drag the slider or click a preset. This password generator defaults to 16 characters.
That default is not arbitrary: NIST requires at least 15 characters for a single-factor password, so 16 clears the standard with a margin.
Step 2 — Choose character types
Leave all four types enabled unless a specific system forces you to do otherwise. More character types means a larger pool and more entropy per character.
Some older systems reject symbols. If you hit one, turn symbols off and raise the length to 20 or more — the extra characters more than repay the smaller pool.
Step 3 — Check strength and entropy
Most tools stop at a vague label. This password generator also shows the exact entropy: the meter fills in five bands, and the scale beneath it marks where your password falls in bits.
Reading the entropy value
Below 40 bits is trivially crackable. Between 64 and 80 is adequate for low-value accounts. Above 100 bits is beyond brute force with any foreseeable hardware.
Step 4 — Copy, or generate in bulk
Click Copy and paste the result straight into the account you are creating. The button confirms with a brief “Copied!” and reverts. Nothing about the copied value leaves the page.
Generating up to 50 passwords at once
Open Advanced options and raise the quantity. The output becomes a list you can copy in one go or download as a text file — useful for onboarding a team or seeding test data.
What you can do with this password generator
Everyday account passwords
Generate one per account, paste it in, and let your password manager store it. The value of a password generator comes from never reusing what it produces.
If an account needs a password you must type by hand on a TV or console, a memorable password is the better shape.
Bulk passwords for teams and onboarding
Setting up 20 accounts is where bulk mode pays off. Generate the batch, download the text file, distribute through a secure channel, and require a change on first login.
Developer secrets and API credentials
A general password generator is the wrong shape for most machine credentials: they usually need a specific encoding or fixed length rather than a mixed character set.
For those, use the dedicated tools: API keys, secret keys, JWT signing secrets, salts, or a raw random string when you control the format.
Wi-Fi, router and device passwords
Router admin pages and Wi-Fi keys are typed rarely and attacked often, which makes them ideal candidates for a long generated value.
For a keypad or PIN-only device, use the PIN generator instead.
How long should your password be?
8 characters is no longer safe
An 8-character password using every character type falls in under an hour to an offline attack on a fast hash. Eight characters was a reasonable floor in 2005. It is not one now.
12 characters is the practical minimum
Twelve mixed characters reach roughly 8,700 years. That is adequate for accounts you do not care much about, and below what NIST now asks for.
16 characters is the recommended default
Sixteen characters clears the NIST 15-character floor and lands above 100 bits of entropy. It is long enough that length stops being the weak link, and short enough that pasting it never causes trouble.
When to go to 24 or 32
Raise it for accounts that can reset other accounts: your email, your password manager, your domain registrar, your bank.
Beyond about 32 characters the added entropy is academic — the attack will target you, your device, or a password reset flow long before it targets the password.
Is an online password generator safe?
It depends entirely on where the password is created. Whether an online password generator is safe is a structural property of how it is built, not a promise in its marketing copy.
Where your password is created
This password generator runs entirely in your browser. There is no request to log, no database row to leak, no backup to subpoena, and no server-side history that can be breached later.
How to verify it yourself
Do not take our word for it. There are three checks, and each takes under a minute.
- Disconnect from the internet and reload this page from cache. It still generates passwords.
- Open your browser's developer tools, switch to the Network panel, and generate. No request appears.
- View the page source and read the code that produces the value.
A password generator that builds the value on a server cannot pass any of those three checks.
What to do after you generate a password
Paste it directly into the account you are creating, then store it in a password manager.
Avoid the common failure modes: emailing it to yourself, saving it in a notes app, or keeping a spreadsheet of credentials. Each of those turns a strong password back into a weak one.
Password generator versus password manager
A password generator and a password manager solve different halves of the same problem, and this site only solves one of them.
This is a generator, not a password manager. It creates values. It does not store them, sync them, or fill them in for you — and it is not affiliated with any password manager product.
| Capability | This generator | A password manager |
|---|---|---|
| Creates strong random passwords | Yes | Yes |
| Stores them for you | No | Yes |
| Syncs across devices | No | Yes |
| Fills them in automatically | No | Yes |
| Requires an account | No | Yes |
| Price | Free | Free to paid |
Use both. Generate here, store there. A password generator plus a manager covers the whole workflow; a strong password you cannot store safely helps nobody.
Frequently asked questions
Is this password generator really free?
Yes. Every generator on this site is free, with no limit on how many passwords you create. There is no account, no email gate, and no paid tier. This site has no premium version to upsell you into.
Do I need to create an account to use it?
No. Passwords appear the moment the page loads. We do not ask for an email address, and we set no cookies that identify you.
Are the generated passwords stored anywhere?
No. Passwords are created in your browser with the Web Crypto API and never leave your device. They are not sent to a server, not written to a database, not saved in browser storage, and not included in any analytics event. Closing the tab destroys them permanently.
How is this different from the 1Password or LastPass generator?
Those tools are entry points for paid password managers, so they stay deliberately simple. This one is the product. It offers bulk generation up to 50 passwords, an exact entropy readout in bits, custom character exclusion, and length presets, none of which the password manager tools provide.
How long should my password be?
Use 16 characters as your default. Go to 20 or more for email, banking, and any account that can reset your other accounts. NIST now requires a minimum of 15 characters for passwords used as a single factor, so 16 clears that bar with room to spare.
What should I do with the password after I generate it?
Paste it straight into the account you are creating, then save it in a password manager. Do not email it to yourself, keep it in a notes app, or put it in a spreadsheet. If you need something you can actually memorise, use a passphrase instead.
Can I generate more than one password at a time?
Yes. Open Advanced options and set the quantity to 5, 10, 25, or 50. Bulk output can be copied in one click or downloaded as a plain text file, which helps when you are setting up several accounts or seeding a test environment.
Is a randomly generated password better than one I invent myself?
Yes, and by a wider margin than most people expect. Human-chosen passwords cluster around predictable shapes: a capital letter first, a word in the middle, a number and symbol at the end. Cracking tools target those shapes directly. A generated password has no shape to target.
More free generators
Every generator here runs locally in your browser, with no account and no limits. If you need something other than a password generator, start below.
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Methodology
Last updated
How entropy is calculated
entropy = length × log₂(character set size)
The character set size is the pool actually in use after your exclusions are applied, not the theoretical maximum. Values are rounded down for display because entropy is an estimate, not a measurement.
How the cracking-time estimates work
time = charsetlength ÷ 2 ÷ 10¹² guesses per second
The figures assume an offline attack against a fast unsalted hash such as MD5 or SHA-1, at 10¹² guesses per second, averaged over half the keyspace. A slow hash designed for passwords — bcrypt, scrypt, Argon2 — takes many orders of magnitude longer. These are order-of-magnitude comparisons, not predictions.
Where the randomness comes from
Every value is produced by crypto.getRandomValues() in your browser.Math.random() is never used. Character selection uses rejection sampling to avoid the modulo bias that would otherwise favour the start of the alphabet.