Password Generator

Generate strong random passwords online. Customize length, characters, and complexity. Free and secure.

Click Generate

Length: 16

Count

Uppercase (A-Z) Lowercase (a-z) Digits (0-9) Symbols (!@#$...)

About Password Generator

Generate cryptographically secure random passwords using the Web Crypto API. All passwords are generated locally in your browser — nothing is sent to any server.

Video Tutorial

2:20

Video coming soon — full transcript available below

Chapters

Full transcript searchable

0:00

Why strong passwords matter and what makes them secure

Welcome to this Password Generator tutorial. Passwords are the primary defense for most accounts, yet weak passwords remain the top cause of security breaches. A strong password has three properties: length (12+ characters minimum, 16+ preferred), randomness (not based on dictionary words, names, or patterns), and character diversity (mix of uppercase, lowercase, numbers, and special symbols). The Password Generator on ToolPilot.dev uses the browser's cryptographic random number generator — the same one used for SSL certificates — ensuring passwords are truly unpredictable.

0:28

Configure character sets and length

Open the Password Generator on ToolPilot.dev. The length slider or input controls password length — drag it to your desired length. 16 characters is a good default for most accounts. 32 characters for high-value accounts. Below the length control are checkboxes for character sets: uppercase letters A-Z, lowercase letters a-z, numbers 0-9, and special symbols like !@#$%^&*(). Enable the sets you need. For maximum security, enable all four categories.

0:55

Generate and copy a password

Click Generate Password. The password appears in the output field. Click the Copy button to copy it to your clipboard. The password is gone from your clipboard after you paste it. Click Generate again for a completely different password — each one is independently random. The strength indicator shows whether the combination of length and character sets produces a weak, medium, strong, or very strong password based on entropy calculations.

1:25

Exclude ambiguous characters

Some contexts require typing passwords manually — on mobile devices, in terminal windows, or into forms on other devices. In these cases, enable the 'exclude ambiguous characters' option. This removes characters that look similar: uppercase I and lowercase l and the number 1, the letter O and the number 0. The generated passwords remain secure but are much easier to type accurately without transposing characters.

1:50

Batch generation for system provisioning

For system administrators and developers who need to provision multiple accounts, the batch generation mode creates a specified number of passwords at once — up to 50 per batch. Each password is independently generated. Copy the entire list for use in scripts, CSV imports, or credential provisioning tools. This is useful when creating test user accounts, provisioning service account passwords, or generating API keys.

2:10

Privacy and security note

Generated passwords never leave your browser. The tool uses window.crypto.getRandomValues() — the same cryptographic API used by your browser's TLS implementation. No passwords are logged, stored, or transmitted. As with any security tool, use a password manager to store your generated passwords — never reuse them or store them in plain text. Visit ToolPilot.dev for this and 19 other free developer and security tools.

Transcript covers all 6 chapters (2:20 total).

Frequently Asked Questions

What makes a password strong?

A strong password is long (16+ characters), uses a mix of uppercase and lowercase letters, digits, and special characters, and is unique to each account. Length is the most important factor — 20 random characters is stronger than a 10-character password of any complexity.

Is this password generator truly random?

Yes. The Password Generator uses the browser's built-in crypto.getRandomValues() API, which provides cryptographically secure random numbers. Passwords are generated in your browser and never transmitted to any server.

How long should my password be?

Minimum 12 characters for basic accounts, 16-20 characters for financial or high-value accounts. Security experts and NIST now recommend prioritizing length over complexity — a 20-character random password is extremely resistant to brute force attacks.

What special characters should I include?

Include a mix of: uppercase letters (A-Z), lowercase letters (a-z), digits (0-9), and symbols (!@#$%^&*()-_=+). Some systems restrict certain special characters — the generator lets you customize which character sets to include.

Should I store passwords in a browser?

Browser password managers are convenient and much better than reusing passwords, but a dedicated password manager (Bitwarden, 1Password, KeePass) offers better security, cross-device sync, and breach monitoring.

Can I generate a passphrase instead of a random password?

A passphrase uses random words (e.g., 'correct-horse-battery-staple') and is highly memorable yet secure due to its length. The current tool generates character-based passwords; passphrases require a word list generator.

How do I hash a password for storage in a database?

Never store plaintext passwords. Use a slow hashing algorithm: bcrypt, Argon2, or PBKDF2 with a random salt. For quick hash experiments, use the MD5 & SHA Hash Generator at toolpilot.dev/tools/hash-generator/ — but only bcrypt/Argon2 are suitable for production password storage.

Is it safe to generate passwords in a browser?

Yes, because the Password Generator uses crypto.getRandomValues() (the Web Crypto API) instead of Math.random(). No password data is sent to our servers — all generation happens locally in your browser.

What is entropy and why does it matter for passwords?

Password entropy measures unpredictability in bits. Higher entropy means harder to guess. A 16-character password using 95 printable characters has about 105 bits of entropy — which would take billions of years to brute force at current computing speeds.

Code Examples

Ready-to-use implementations in popular programming languages. Copy, paste, and run.

Generate Secure Password in JavaScript

// Generate a cryptographically secure random password
function generatePassword(length = 16) {
  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnop'
    + 'qrstuvwxyz0123456789!@#$%^&*';
  const array = new Uint32Array(length);
  crypto.getRandomValues(array);
  return Array.from(array, x => chars[x % chars.length]).join('');
}

console.log(generatePassword());    // e.g. kR9#mP2xLq@7wN4v
console.log(generatePassword(32));   // 32-char password

Generate Secure Password in Python

import secrets
import string

def generate_password(length=16):
    chars = string.ascii_letters + string.digits + '!@#$%^&*'
    return ''.join(secrets.choice(chars) for _ in range(length))

print(generate_password())     # e.g. kR9#mP2xLq@7wN4v
print(generate_password(32))   # 32-char password

# Generate a passphrase (easier to remember)
words = ['correct', 'horse', 'battery', 'staple', 'cloud', 'river']
passphrase = '-'.join(secrets.choice(words) for _ in range(4))
print(passphrase)  # e.g. horse-cloud-staple-river

Generate Secure Password in Go

package main

import (
	"crypto/rand"
	"fmt"
	"math/big"
)

func generatePassword(length int) string {
	chars := "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnop"
	chars += "qrstuvwxyz0123456789!@#$%^&*"
	result := make([]byte, length)
	for i := range result {
		idx, _ := rand.Int(rand.Reader, big.NewInt(int64(len(chars))))
		result[i] = chars[idx.Int64()]
	}
	return string(result)
}

func main() {
	fmt.Println(generatePassword(16))
}

Generate Password in Bash

# Generate 16-char random password
openssl rand -base64 12

# Generate password with specific charset
tr -dc 'A-Za-z0-9!@#$%' < /dev/urandom | head -c 16; echo

# Generate using Python one-liner
python3 -c "import secrets,string; print(''.join(secrets.choice(string.ascii_letters+string.digits) for _ in range(16)))"

Related Workflow Guides

🛡️ Secure Config: Generate Passwords → Hash → Encode Base64 → 🚀 Pre-Deploy Security: Hash Assets → Encode Config → Rotate Passwords →

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