RubanTools

Password Generator

Create strong, random passwords instantly. Adjust length, pick your character types, and copy with one click.

 

16

Character Types

Uppercase (A-Z)
Lowercase (a-z)
Numbers (0-9)
Symbols (!@#…)

Secure by Design

Not all password generators are equal. Here's what makes this one different.

Cryptographically Secure

Uses crypto.getRandomValues - the same Web Cryptography API browsers use for TLS connections - not the predictable Math.random.

Fully Customisable

Choose any length from 8 to 64 characters and toggle uppercase, lowercase, numbers and symbols independently to match any site's requirements.

Strength Feedback

The entropy meter shows the exact strength in bits - not just a vague colour label - so you know precisely how hard your password is to crack.

Three Steps to a Strong Password

01
Set Your Length

Drag the slider to choose between 8 and 64 characters. The default 16 is a solid starting point.

02
Choose Character Types

Toggle uppercase, lowercase, numbers and symbols. All four are on by default for maximum strength.

03
Copy and Use

Click Generate for a fresh password, then Copy to save it to your clipboard instantly.

Everyday Situations

Create a strong master password for a password manager
Generate a secure Wi-Fi password for a new router
Set a temporary password for a new employee account
Generate API keys or secret tokens for development
Set a strong app or service account password
Replace a weak or reused password on any account

Secure Password Generator

A strong password is the first line of defence for any online account. This generator creates passwords of 8 to 64 characters using a mix of uppercase letters, lowercase letters, numbers, and symbols, selected via the Web Cryptography API's window.crypto.getRandomValues() - a cryptographically secure source of randomness built into every modern browser. Unlike Math.random()-based generators, it is resistant to predictability attacks. No password generated here is ever sent to a server; everything happens locally in your browser.

Password Security in India

India ranked among the top five countries for cybercrime incidents in 2023, according to India's Computer Emergency Response Team (CERT-In), which handled over 1.3 million cybersecurity incidents that year. Credential stuffing - where attackers try leaked username-password combinations from one breach on other sites - accounts for a significant portion of account takeovers. The National Cyber Security Policy and CERT-In's 2022 directive mandate organisations to enforce strong password policies. For individuals, SEBI, RBI, and UIDAI all recommend unique, complex passwords for trading accounts, net banking, and Aadhaar-linked services respectively. Using a randomly generated password for each account - stored in a trusted password manager - is the single most effective individual cybersecurity measure.

Choosing the Right Settings

For most accounts, 16-character passwords with all character types enabled strike a strong balance between security and memorability. For critical accounts - banking, email, government portals - use 24+ characters. Symbols add significant entropy: a 16-character password with all character types has approximately 95^16 possible combinations - effectively unguessable by brute force.

Frequently Asked Questions

Yes. It uses crypto.getRandomValues, the Web Cryptography API built into all modern browsers - the same source of randomness used for HTTPS connections. It never falls back to the predictable Math.random.

No. Everything runs entirely in your browser. The password is never sent to any server, never logged, and is gone as soon as you close the tab. We have no way to see it.

Entropy measures how many guesses would be needed to crack a password by brute force. Each additional bit doubles the number of possibilities. A 16-character password using all four character types has about 105 bits of entropy - that would take longer than the age of the universe to crack with current hardware. 80+ bits is considered strong for everyday accounts.

At least one character type must be active - there is nothing to pick from if all pools are empty. The last active type is locked and cannot be toggled off.

The symbol set is: !@#$%^&*()-_=+[]{}|;:,<>? - 28 common symbols that are accepted by most websites and services. Quotes, backticks and backslashes are intentionally excluded to avoid issues with command-line tools and config files.