The Random String Generator is a versatile tool for creating random character sequences of any length and composition. It supports customizable character sets including uppercase, lowercase, numbers, and symbols, or you can specify your own custom character set. Perfect for generating API keys, tokens, test data, unique identifiers, and any scenario requiring random strings.
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Set the length, choose which character types to include (uppercase, lowercase, numbers, symbols), and specify how many strings to generate. Click 'Generate' to create random strings. You can also use a custom character set.
Yes! Enter your custom characters in the 'Custom Character Set' field. When a custom charset is provided, it overrides the character type options. This is useful for generating strings with specific characters only.
You can generate multiple strings at once by setting the count. The tool will generate the specified number of random strings, each with the same length and character set options.
Yes! Our random string generator is 100% free with no registration required, no usage limits, and no hidden fees. You can generate as many random strings as you need for your development work.
No, all string generation happens locally in your browser. We don't store, save, or have access to any strings you generate. Your privacy is completely protected.
Random strings are commonly used for API keys, session IDs, unique identifiers, test data, passwords, tokens, and any scenario where you need unpredictable character sequences.
The tool uses browser's Math.random() for generation, which is suitable for most use cases but not cryptographically secure. For security-critical applications (passwords, tokens), consider using crypto.getRandomValues() or a dedicated secure random generator.
Yes! Use the 'Custom Character Set' field to specify exactly which characters to use. When a custom charset is provided, it overrides the character type checkboxes. This is useful for generating strings with specific character requirements.
The tool supports generating strings up to 1000 characters in length. You can adjust the length using the slider or by entering a value directly. For very long strings, consider generating multiple shorter strings.
Yes! Set the 'Number of Strings' field to generate multiple random strings at once (up to 100). Each string will have the same length and character set options. This is useful for generating test data or multiple API keys.
Click the 'Copy All' button to copy all generated strings to your clipboard, separated by newlines. You can also copy individual strings using the copy button next to each string.