Random String Generator
Generate random strings with customizable options for passwords, tokens, IDs, and more. Control length, character sets, and other parameters to create strings that meet your specific requirements.
Your random string will appear here
Strength:
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Presets
Length
16
Character Sets
Advanced Options
Generated Strings History
Your generated strings will appear here
How to Use This Random String Generator
- Choose a Preset: Select a preset for common use cases like passwords, PINs, or UUIDs.
- Adjust Length: Set the desired length for your random string using the slider or input field.
- Select Character Sets: Choose which types of characters to include in your random string.
- Configure Advanced Options: Set additional options like excluding similar characters or requiring all character types.
- Generate String: Click the "Generate String" button to create a random string based on your settings.
- Copy or Save: Copy the generated string to your clipboard or view your history of generated strings.
Tip: For secure passwords, use a mix of character types and a length of at least 12 characters. The strength meter will help you evaluate the security of your generated string.
Frequently Asked Questions
A random string generator has many practical applications:
- Passwords: Create strong, secure passwords for accounts
- Security Tokens: Generate tokens for API authentication
- Unique IDs: Create unique identifiers for databases or systems
- Test Data: Generate random data for testing applications
- Encryption Keys: Create keys for encryption algorithms
- Coupon Codes: Generate unique codes for promotions
- Session IDs: Create secure session identifiers for web applications
The security of generated strings depends on several factors:
- Length: Longer strings are more secure. For passwords, a minimum of 12 characters is recommended.
- Character Set: Using a mix of uppercase letters, lowercase letters, numbers, and symbols significantly increases security.
- Randomness: This generator uses JavaScript's cryptographically secure random number generator when available, providing high-quality randomness.
- Entropy: The more possible combinations (higher entropy), the more secure the string. A string with more character types and longer length has higher entropy.
This generator offers several presets for common use cases:
- Password: Creates a secure password with mixed character types
- PIN Code: Generates a numeric PIN (Personal Identification Number)
- Username: Creates a readable alphanumeric username
- Hex String: Generates a hexadecimal string (0-9, A-F)
- UUID: Creates a standard UUID (Universally Unique Identifier) in the format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
- Alphanumeric: Generates a string using only letters and numbers
No, this random string generator operates entirely in your browser. The generated strings are not sent to our servers or shared with any third parties. Your history of generated strings is stored only in your browser's local storage and is accessible only to you. You can clear this history at any time using the "Clear History" button.