Random String Generator — Free Online Tool
Generate random strings with a custom length and your choice of character sets.
About Random String Generator
The Random String Generator creates random strings of a length you choose using any combination of uppercase letters, lowercase letters, numbers, and symbols. It is handy for test data, placeholder identifiers, API keys, coupon codes, and temporary tokens.
You can generate several strings at once and adjust the length anywhere from a single character up to one hundred twenty-eight. Each character is drawn from your selected sets using secure browser randomness, and the results are ready to copy in one click.
How to Use Random String Generator
- Pick the length using the slider.
- Choose how many strings you want and which character sets to use.
- Click Generate to create the strings.
- Copy the output for use in your project.
Key Features
Length from one to one hundred twenty-eight characters
Mix uppercase, lowercase, numbers, and symbols
Generate multiple strings in a single batch
Secure browser randomness for each character
One-click copy of all generated strings
Frequently Asked Questions
What can I use random strings for?
They work well as test data, placeholder IDs, coupon codes, temporary tokens, and other cases where unpredictable values are needed.
Can I generate more than one string at a time?
Yes. Set the how many strings field to produce a batch, with each string on its own line.
Which character sets are available?
You can include uppercase letters, lowercase letters, numbers, and symbols in any combination you choose.
Is this suitable for passwords?
For dedicated password creation the Password Generator adds a strength meter and guarantees one character from each set, but this tool is great for general random strings.