Random String Generator
Generate random alphanumeric strings right in your browser — useful for tokens, test IDs, or temporary identifiers. Customize length, character types, or supply your own character set, and generate in bulk. Nothing is sent to a server.
Full character control
Toggle uppercase, lowercase, numbers, and symbols independently, or supply your own custom character set.
Any length
Generate strings from 1 to 128 characters long.
Bulk generation
Generate up to 50 strings at once and copy them all together, one per line.
Common Mistakes to Avoid
Using this for password generation without symbols
Solution:
For actual account passwords, use the dedicated Password Generator, which is tuned for security with a strength meter.
Setting a custom character set with too few unique characters
Solution:
A very small character set makes strings easier to guess — use a broader set for anything security-sensitive.
Frequently Asked Questions
This tool is general-purpose (tokens, test data, IDs) and supports fully custom character sets; the Password Generator is tuned specifically for account security with a strength meter.
Yes — enter a custom character set and it overrides the checkbox options.
Full character control
Toggle uppercase, lowercase, numbers, and symbols independently, or supply your own custom character set.
Any length
Generate strings from 1 to 128 characters long.
Bulk generation
Generate up to 50 strings at once and copy them all together, one per line.