Configuration
16
5
Uppercase (A-Z)
Lowercase (a-z)
Numbers (0-9)
Symbols (!@#)
Exclude Similar
Like i, l, 1, L, o, 0, O
Exclude Ambiguous
Like { } [ ] ( ) / \ ' " `
Generated Results
Ready to generate secure strings.
Like i, l, 1, L, o, 0, O
Like { } [ ] ( ) / \ ' " `
Ready to generate secure strings.
Generate secure random strings instantly with our free Random String Generator. Create random text strings, passwords, API keys, session tokens, UUID-style identifiers, and cryptographically secure character sequences in seconds.
Customize your output using uppercase letters, lowercase letters, numbers, and special symbols. Choose your desired string length, apply security filters, and generate unlimited random strings directly in your browser.
No signup required. Completely free and privacy-focused.
A Random String Generator is an online tool that creates randomized sequences of characters based on selected rules and character sets.
These strings can include:
Random strings are commonly used for:
Our generator uses cryptographically secure randomness for stronger unpredictability and better security.
Follow these steps to create your custom random text string:
Create strong passwords with unpredictable combinations of:
Longer random passwords improve protection against brute-force attacks.
Developers use random strings for:
Cryptographically secure randomness helps prevent predictable token generation.
Generate random text for:
This helps developers simulate realistic application data.
Populate staging environments with randomized identifiers and secure sample values for safer testing.
Generate:
Yes. We use the browser-native crypto.getRandomValues() method, which provides CSPRNG-level randomness suitable for security tokens and passwords. This is significantly stronger than Math.random() used in basic generators.
No. All generation occurs client-side. We have zero access to your strings, passwords, or tokens. This is a zero-knowledge architecture by design.
For most secure passwords, 16–24 characters are recommended. API keys and authentication tokens often use 32+ characters.
Yes. The “Exclude Similar” option removes ambiguous characters like O, 0, l, and 1 for improved readability.
Yes. Bulk random string generation can be used for testing, databases, and large-scale workflows.
It depends on your use case. UUIDs follow a fixed structure, while random strings offer fully customizable lengths and character sets.