Password Generator for Developers How to Create Secure API Keys Access Tokens and Cryptographic Salts
Your API needs secure access tokens. Your database needs cryptographic salts. A password generator creates cryptographically random strings for all of them. Here's the developer's guide.
You are building an API. You need: access tokens for authentication, API keys for third-party integrations, and cryptographic salts for password hashing. Each requires a long, random, unguessable string. You could type random characters on your keyboard. That is not random. Human-generated "randomness" follows patterns — patterns that attackers exploit. You need a password generator configured for cryptographic randomness.
What Developers Need from a Password Generator
Access tokens: 32-64 characters, mixed case + digits, no symbols (symbols can cause issues in HTTP headers). Example: a 64-character token has 384 bits of entropy — effectively unguessable. Use the generator with these settings.
API keys: 32-40 characters, mixed case + digits, often with a prefix for identification. Example: sk_live_ + 32 random characters. The prefix identifies the key type. The random string is the secret. The generator creates the random string. You add the prefix.
Cryptographic salts: 16-32 characters, full character set including symbols. The salt is combined with the password before hashing. Each password gets a unique salt. The generator creates a unique salt for each password. The salt prevents rainbow table attacks. The generator ensures the salt is truly random.
The Difference Between Passwords and Developer Tokens
Passwords are for humans to remember (or store in a password manager). Developer tokens are for machines to use. They should be: longer (64+ characters — machines do not need to remember them), fully random (no patterns, no dictionary words), and never displayed to users. The password generator handles both. Configure the length and character set. The generator creates the random string. You integrate it into your application.
Tools mentioned in this article
Password Generator
Generate strong random passwords with adjustable length and character sets — uppercase, lowercase, numbers, symbols. Shows estimated strength. One click to copy or regenerate.
UUID Generator
Generate random UUID v4 identifiers. Click to copy, generate multiple at once with separator options. Good for database keys, test fixtures, or any time you need a unique ID.
Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. Also supports MD5 for legacy checks. Compare two hashes side by side to verify file integrity.
