Web Crypto API Explained
The Web Crypto API is a browser-native cryptographic standard built into every modern browser. It provides security capabilities that were previously only available to desktop applications or server-side code. This guide explains what it is, what it does, and why PassCraft chose it as the foundation for secure password generation. No server, no plugins, no complexity — just native browser security.
Password Generator — 8 to 12 Characters
Generate cryptographically secure passwords from 8 to 12 characters instantly. Choose your length, character set, and quantity. Powered by the Web Crypto API — your passwords never leave your browser.
Estimated crack time:—
Generate a Secure Password — Choose Your Length (8–12 Characters)
Characters
Advanced
Exclude Characters
Password Stats
Bulk Generate
PassCraft generates passwords from 8 to 12 characters using your browser's Web Crypto API — the same cryptographic standard used by banks and security software. No data is ever sent to a server.
Frequently Asked Questions
How many characters should my password be?
Security experts recommend 8 characters as the minimum, with 12 characters or more for important accounts. PassCraft lets you generate passwords from 8 to 12 characters (or any length you choose) in seconds.
Is an online password generator safe to use?
PassCraft is safe because it runs entirely in your browser using the Web Crypto API. Unlike other tools, your passwords are generated locally and never transmitted, stored, or logged on any server.
What's the difference between an 8-character and 12-character password?
A 12-character random password is approximately 500,000 times stronger than an 8-character one due to the exponential increase in possible combinations. For most accounts today, 12 characters is the recommended minimum.
What the Web Crypto API Does
The Web Crypto API provides four core cryptographic capabilities:
- Secure random number generation: getRandomValues() generates cryptographically random values suitable for passwords and tokens
- Hashing: Create cryptographic digests of data (SHA-256, SHA-512)
- Encryption & decryption: Symmetric encryption algorithms (AES)
- Key generation: Generate cryptographic keys for various purposes
PassCraft uses only the first capability — secure random generation — to create unpredictable passwords.
Why PassCraft Chose the Web Crypto API
Alternative: Server-Side Generation
Clouds-based password generators like LastPass generate passwords on their servers, then send them to you. This introduces network risk: interception, logging, and potential breaches of the generation service itself.
PassCraft: Browser-Only Generation
All password generation happens in your browser using the Web Crypto API. No network call, no server, zero compromise. Your password is generated entirely on your device.
Frequently Asked Questions
Is the Web Crypto API available offline?
Yes. Once the PassCraft page is loaded, all generation happens locally. No internet connection is required for password generation itself.
Can the Web Crypto API be intercepted?
No. The Web Crypto API operates entirely within your browser's sandbox. There is no network call, no server, and no interception vector.
What other tools use the Web Crypto API?
The Web Crypto API is used by password managers, encrypted messaging apps, and digital signature tools. It is the same standard used in enterprise security software.