Random String Generator
Configuration
Generated String
Secure Password Generation
Create cryptographically strong passwords with customizable character sets. Perfect for securing accounts and applications with industry-standard randomness.
API Token Generator
Generate secure API tokens and authentication keys for your applications. Customize length and character sets for optimal security and compatibility.
Mobile-Friendly Design
Works perfectly on all devices – desktop, tablet, and mobile. Responsive design ensures optimal usability across all screen sizes and orientations.
Batch String Generation
Generate multiple random strings at once for bulk operations. Perfect for creating test data, user IDs, or multiple security tokens simultaneously.
Instant Generation
No server required – all processing happens in your browser. Lightning-fast generation with complete privacy and security. Works offline too!
Customizable Options
Full control over string composition with preset templates and custom configurations. Choose from uppercase, lowercase, numbers, and special symbols.
Frequently Asked Questions
What is a random string generator?
A random string generator is a tool that creates sequences of characters randomly selected from a specified set. It’s commonly used to generate passwords, tokens, IDs, and other secure strings for various applications.
How secure are the generated strings?
The strings are generated using JavaScript’s crypto.getRandomValues() function when available, which provides cryptographically secure random numbers. For older browsers, it falls back to Math.random() with additional entropy. The security depends on the length and character set complexity you choose.
Can I use these strings for passwords?
Yes, the generated strings are suitable for passwords. Use the “Strong Password” preset or configure your own settings with uppercase, lowercase, numbers, and symbols. We recommend at least 12 characters for good security.
What character sets are available?
You can choose from uppercase letters (A-Z), lowercase letters (a-z), numbers (0-9), and special symbols (!@#$%^&*). You can mix and match any combination of these sets to create strings that meet your specific requirements.
Is there a limit to string length?
You can generate strings from 1 to 1000 characters long. For most applications, 8-32 characters are sufficient, but longer strings provide additional security for highly sensitive applications.
Does this tool store my generated strings?
No, this tool runs entirely in your browser and doesn’t send any data to external servers. Your generated strings are never stored, logged, or transmitted anywhere. This ensures complete privacy and security.
How do I use the batch generation feature?
Enter the number of strings you want to generate (up to 100) in the batch count field and click “Batch”. All strings will be generated with the same configuration settings. You can copy individual strings or all at once.
What are the preset templates?
Preset templates are pre-configured settings for common use cases: Strong Password (mixed characters with symbols), API Token (alphanumeric, longer length), Alphanumeric Only (letters and numbers), Numbers Only, and Letters Only. These provide quick setup for typical scenarios.