🧰Locly

Secure Password Generator (Client-Side)

Generate strong, random passwords locally in your browser

16 characters

About This Tool

A password generator creates random, unpredictable passwords that are much stronger than human-created passwords. This tool uses your browser's cryptographically secure random number generator to create passwords locally - no password is ever sent to any server. Strong passwords are essential for protecting your online accounts from brute-force attacks and credential stuffing.

How to Use

  1. Set your desired password length using the slider (longer is stronger)
  2. Select which character types to include (uppercase, lowercase, numbers, symbols)
  3. Click 'Generate Password' to create a new random password
  4. The password strength indicator shows how secure your password is
  5. Click 'Copy' to copy the password to your clipboard

Common Use Cases

  • Account security: Generate unique passwords for each online account
  • Password managers: Create master passwords or entries for password vaults
  • System administration: Generate secure passwords for servers and services
  • Development: Create test passwords or API keys during development
  • Compliance: Generate passwords meeting specific security requirements

FAQ

Q1: How secure are these passwords?

Very secure. We use the Web Crypto API (crypto.getRandomValues) which provides cryptographically secure random numbers. The passwords are generated entirely in your browser and never transmitted anywhere.

Q2: What password length should I use?

For most purposes, 16+ characters is recommended. For high-security applications, use 20+ characters. Longer passwords exponentially increase the time needed for brute-force attacks.

Q3: Should I include all character types?

Including all character types (uppercase, lowercase, numbers, symbols) creates the strongest passwords. However, some systems have restrictions on allowed characters - adjust accordingly.

Q4: Is the generated password stored anywhere?

No. The password exists only in your browser's memory and on your screen. Once you navigate away or refresh the page, it's gone unless you've copied it. We have no server-side storage.

Q5: Why shouldn't I use memorable passwords?

Memorable passwords are often predictable - using words, dates, or patterns that attackers can guess. Random passwords eliminate this vulnerability. Use a password manager to store complex passwords securely.

Related Tools

JSON FormatterJSON ↔ YAMLCSV ↔ JSONJWT DecoderRegex TesterBase64SHA-256 & MD5 HashUUIDURL Encode