Password Generator

Strength: Very StrongEntropy: 104 bits
Generated Password
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How It Works

Cryptographic RNG

Uses Web Crypto API (crypto.getRandomValues) for true randomness.

Client-Side Only

Passwords are generated in your browser. Nothing is sent to any server.

Guaranteed Coverage

Every password includes at least one character from each selected set.

What This Tool Does

Password Generator is built for deterministic developer and agent workflows.

Generate strong, cryptographically secure passwords with customizable length, character sets, and entropy meter.

Use How to Use for execution steps and FAQ for constraints, policies, and edge cases.

Last updated:

This tool is provided as-is for convenience. Output should be verified before use in any production or critical context.

Agent Invocation

Best Path For Builders

Dedicated API endpoint

Deterministic outputs, machine-safe contracts, and production-ready examples.

Dedicated API

https://aidevhub.io/api/password-generator/

OpenAPI: https://aidevhub.io/api/openapi.yaml

GET /api/password-generator/ GET password-generator
POST /api/password-generator/ POST password-generator

Unified Runtime API

https://aidevhub.io/api/tools/run/?toolId=password-generator&a=...

GET and POST are supported at /api/tools/run/ with identical validation and limits.

Limit: req / s, input max 256 KB.

How to Use Password Generator

  1. 1

    Set password length

    Choose length between 12 and 128 characters. Longer passwords are more secure; aim for at least 16 characters for important accounts.

  2. 2

    Toggle character types

    Enable/disable uppercase letters, lowercase letters, numbers, and special symbols. For maximum security, include all character types.

  3. 3

    Generate and preview

    Click 'Generate' to create a cryptographically secure password. See multiple options and choose the one you prefer.

  4. 4

    Copy to clipboard securely

    Click 'Copy' to copy the password to your clipboard. The clipboard is cleared after 30 seconds for security. Don't store in plain text.

  5. 5

    Avoid memorable patterns

    Regenerate if the password looks too sequential or pattern-like. Use the generated password as-is to maximize randomness and security.

Frequently Asked Questions

What is Password Generator?
Password Generator creates strong, cryptographically secure passwords using your browser's built-in crypto API. It's designed for developers and security-conscious users who need reliable, random passwords.
How do I use Password Generator?
Set your desired password length and choose which character sets to include — uppercase, lowercase, numbers, and symbols. The entropy meter shows password strength. You can generate single or bulk passwords and copy them instantly.
Is Password Generator free?
Yes. This tool is free to use with immediate access—no account required.
Does Password Generator store or send my data?
No. All processing happens entirely in your browser. Passwords are generated using the Web Crypto API locally on your device — nothing is sent to any server.
How secure are the generated passwords?
Passwords are generated using the Web Crypto API (crypto.getRandomValues), which provides cryptographically secure random numbers. The entropy meter shows the exact bit strength of each password so you can verify it meets your security requirements.