Random String Generator
Generate secure, random values instantly with our free random string generator. Perfect for creating passwords, tokens, UUIDs, or test data. Uses cryptographically secure random generation.
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Random String Generator
Generate random strings with custom character sets
Try Examples
How It Works
- Select the desired string length.
- Check boxes to include Uppercase, Lowercase, Numbers, or Symbols.
- Or enter your own custom characters string.
- Click "Generate" to see the result.
Use Cases
- Creating strong random passwords
- Generating API keys or Secret Salts
- Creating unique user IDs for testing
- Fuzzing input fields with random text
Frequently Asked Questions
Is this secure?
Yes, it uses `crypto.getRandomValues` (Web Crypto API) for cryptographically secure randomness, unlike `Math.random()`.
Can I use custom characters?
Yes, enter any specific characters in the "Custom Characters" field and the generator will only pick from those.
Is there a length limit?
There is no hard limit, but browser memory may constrain extremely long strings (millions of chars).
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