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Random String Generator

Generate random strings with custom length and characters.

Text ToolsBrowser-only • PrivateFree

LengthHow manyCharset

Random Strings

Output will appear here...

Privacy First: All processing happens locally in your browser. Your data never leaves your device and is never uploaded to any server.

About Random String Generator

The Random String Generator creates random strings of any length from a character set you control — letters, numbers, symbols, or a custom mix. It's ideal for test fixtures, placeholder tokens, coupon codes, and quick sample data. Generation runs locally in your browser using secure randomness, so nothing is uploaded. For passwords use the Password Generator, and for standardized IDs the UUID Generator or Nano ID Generator.

How to Use

1Open Random String Generator and paste or type your data into the input area.
2Adjust any available options to match the result you want.
3Your output is generated instantly — no button-clicking required for most tools.
4Use the Copy or Download button to save your result.

Common Use Cases

Cleaning up copied text, lists, and notes
Preparing content for blog posts, docs, and slugs
Deduplicating and sorting lines for data hygiene
Counting words and characters for SEO and writing limits

Frequently Asked Questions

Can I choose which characters to include?

Yes. Toggle uppercase, lowercase, digits, and symbols, or supply your own character set, and pick the exact length to produce strings tailored to your use.

Is it suitable for passwords?

It can generate strong random values, but for account passwords the dedicated Password Generator adds sensible defaults for strength. Both use secure browser randomness.

Is Random String Generator free to use?

Yes. Random String Generator is completely free with no sign-up, no subscription, and no usage limits. Every tool on CodeUtilityKit is free forever.

Is my data safe when I use Random String Generator?

Absolutely. Random String Generator runs entirely in your browser. Your input is processed locally with JavaScript and is never sent to, stored on, or logged by any server — so it is safe even for private or sensitive data.