Random String / Password Generator

Create random strings for test data with custom character sets. It is fast, free, and designed for everyday development work.

Browser workspace
Your result will appear here.

🔒Private by design. Nothing is uploaded—this tool runs entirely in your browser.

How to use this tool

  1. Paste or type the content you want to process in the input area.
  2. Add the second input or options shown for this tool, when required.
  3. Select “Generate string” to process everything locally in your browser.
  4. Check the result carefully, then use the copy button to save it.

How Random String / Password Generator works

Random strings are useful for fixtures, temporary identifiers, mock tokens, and boundary testing. Adjustable length lets you generate compact sample values or stress-test fields with much longer input.

The browser fills an integer array with cryptographically secure random values and maps each value into the bundled character set. Generation is performed locally and the resulting string is not saved.

This is a developer test-data utility, not a password manager or secrets lifecycle system. Mapping random numbers with a remainder operation can introduce slight bias, so use audited security libraries for production credentials, API keys, or recovery codes.

Frequently asked questions

What does Random String / Password Generator do?

Create random strings for test data with custom character sets.

Is Random String / Password Generator free?

Yes. You can use the complete tool without an account, subscription, or usage limit.

Is my input uploaded anywhere?

No. The tool processes your input inside the current browser tab and does not send editor content to a Toolsvanta processing server.

Does it work on mobile?

Yes. The input, controls, and results adapt to smaller screens, although larger code or data samples are usually easier to inspect on desktop.

Can I use the result in a commercial project?

Yes. You may use the result in personal or commercial work. Always review and test important output before deploying it.

Does Toolsvanta save my work?

No. Input and results are not saved by the tool. Copy anything you want to keep before closing or refreshing the page.

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