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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.

OptionTypeDefaultWhat it does
lengthwhole number32How many characters the result should be. Accepts 1–512. Defaults to 32.
countwhole number5How many results to produce. Accepts 1–50. Defaults to 5.
uppercasetrue / falsetrueDefaults to true.
lowercasetrue / falsetrueDefaults to true.
numberstrue / falsetrueDefaults to true.
symbolstrue / falsefalseDefaults to false.

Worked example

Run these settings on the tool page:

  • length: 32
  • count: 5
  • uppercase: true
  • lowercase: true
  • numbers: true
  • symbols: 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. length accepts 1–512; count accepts 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.

Bash
curl "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.

Tools covered here

Random String Generator

Math

math

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