Random String Generator

Create secure, random text strings for passwords, API keys, or test data.

How It Works

The Random String Generator runs entirely in your browser using JavaScript. Unlike other tools that send your data to a server, we process everything locally on your device. This guarantees 100% privacy and blazing fast speed.

No server interaction – data never leaves your device
Instant results since there is no network latency
Works offline once the page is loaded
Free to use with no usage limits

How to Use

Set Length

Choose how long you want your random string to be (up to 128 characters).

Customize

Select which character types to include: Uppercase, Lowercase, Numbers, or Symbols.

Generate & Copy

Get your random string instantly and copy it with one click.

Frequently Asked Questions

Is this secure for passwords?

Yes, we use the browser's cryptographically secure random number generator (window.crypto), making it suitable for strong passwords.

What are 'ambiguous' characters?

These are characters that look similar, like 'I' (capital i) and 'l' (lowercase L), or '0' (zero) and 'O' (capital o). Excluding them makes strings easier to read.

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Passphrase Generator

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Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for any text and optionally compare two hashes.

The Random String Generator is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.