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QZTools

Random string generator

Generate discount codes, identifiers, tokens or test data in the format you need.

Everything runs in your browser. Nothing you type or paste is sent to a server.

How to use the random string generator

  1. 1

    Pick the length and character set.

  2. 2

    Add a prefix if needed (for example “PROMO-”).

  3. 3

    Copy or download the list.

About this tool

The “Readable” set avoids characters that get confused when read aloud or printed, perfect for printed coupons or invite codes.

Every string is generated with your browser's cryptographic random generator.

Frequently asked questions

Can I use them as passwords?

Yes, though the password generator adds a strength meter and a guaranteed mix of character types.

Can codes repeat?

At 8 or more characters it's very unlikely, but worth checking if you generate thousands.