Random String Generator
Random String GeneratorGenerator
Active Character Set
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789
62 unique characters
About Random String Generator
Generate random strings for various purposes including test data, temporary identifiers, random codes, and more. Customize the length, character set, and quantity to match your needs. All generation happens locally in your browser.
Related Tools
What is a Random String Generator?
A random string generator creates sequences of characters that have no predictable pattern. These strings are useful in many contexts including software development, testing, security, and data management.
Unlike passwords which are designed specifically for security, random strings serve a broader purpose and can be customized for various applications where unique identifiers or test data are needed.
This tool allows you to customize the character set, length, and quantity of strings generated, making it versatile for many different use cases.
Common Use Cases
Test Data
Generate random strings for testing database fields, form inputs, and API endpoints.
Temporary Identifiers
Create unique temporary IDs for sessions, tokens, or tracking purposes.
Sample Data
Populate databases with random strings for development and demo environments.
File Naming
Generate unique filenames to avoid conflicts in file storage systems.
Frequently Asked Questions
Are the generated strings truly random?
The strings are generated using JavaScript's Math.random() function, which provides pseudo-random numbers. While suitable for most purposes like test data and temporary identifiers, for cryptographic security you should use a dedicated cryptographic random generator.
What are ambiguous characters?
Ambiguous characters are those that look similar and can be confused: 0 (zero) and O (letter O), 1 (one), l (lowercase L), and I (uppercase i). Excluding these makes strings easier to read and transcribe accurately.
Can I use a custom character set?
Yes! You can enter any characters you want in the custom charset field. This overrides the standard character type options and uses only the characters you specify.
Is my data secure?
Yes. All generation happens entirely in your browser using JavaScript. No data is sent to any server. The generated strings are created locally on your device.