How to use Random String Generator
Get the best out of Random String Generator: every option explained, a worked example, and what to check when the output is not what you expected.
Updated July 31, 2026
What it does
Generate high-entropy random strings with configurable character sets and batch sizes. It runs entirely in your browser — your input never leaves your device.
Options
Every setting this tool exposes, straight from the code that validates it.
| Option | Type | Default | What it does |
|---|---|---|---|
length | whole number | 32 | How many characters the result should be. Accepts 1–512. Defaults to 32. |
count | whole number | 5 | How many results to produce. Accepts 1–50. Defaults to 5. |
uppercase | true / false | true | Defaults to true. |
lowercase | true / false | true | Defaults to true. |
numbers | true / false | true | Defaults to true. |
symbols | true / false | false | Defaults to false. |
Worked example
Run these settings on the tool page:
length:32count:5uppercase:truelowercase:truenumbers:truesymbols:false
You get:
ptsTBSBmWRzBIYfuSTAEGvhcvsMNK1Cn
Ne9ZNB7QthzR7shlxg9UJj6k04tOzzsY
6kGovLOTeRrmdbJHf0JDfAif9nfkuNmu
fXiba8xvePFrKgWsDznpLP4DAnqchepO
5GNSCkv7Gj6OaYyl2dgLok3VlWuaxQA5
Getting the result you want
Most of the control here is in the options above. If the output is not what you expected, the setting to check first is length and count — those change the shape of the output rather than the input it accepts.
Troubleshooting
- A value is rejected.
lengthaccepts 1–512;countaccepts 1–50. Anything outside that is refused rather than silently clamped. - It is slow on very large input. Everything runs in your browser, so speed depends on your device. Very large inputs are best split up, or run through the API where the work happens on our servers.
Automating it
The same logic is available as a REST endpoint, so you can run it from a script, a CI job or your own app.
Bashcurl "https://api.toolsxpo.com/v1/random-string-generator" \ -H "Authorization: Bearer $TOOLSXPO_KEY"
It costs 1 credit per successful call. See the full endpoint reference, or try it in the playground.
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