Random String Generator

Random alphanumeric, hex or custom strings — set length, count and character set. Nothing sent.

Stays on your device. This tool runs in your browser — nothing you paste or open ever leaves it. Nothing uploaded, nothing to leak.

Character set

Length How many

Exclude look-alikes (0 O 1 l I)

Result

Cryptographic randomness · never sent or stored

Help us improve Was this tool useful? Tap a star. Thanks — your rating helps others find it.

Be the first to rate

How to use it

Set the string length and how many you want, choose a character set — alphanumeric, hexadecimal, letters only, numbers only, or a custom set of your own — then press Generate. Turn on “Exclude look-alikes” to drop easily-confused characters like 0/O and 1/l/I, which is useful for codes people have to type by hand. Copy the whole batch with one click.

Random String Generator — TechWhack Score

9.5/10

Privacy 10/10

Strings are made in your browser with crypto.getRandomValues — nothing is sent.
Speed 10/10

A whole batch is generated the instant you press the button.
Features 8/10

Alphanumeric, hex, letters, numbers, symbols or a custom set; set length and count and exclude look-alike characters.
Free 10/10

No sign-up, no limit, embeddable.

Verdict: Cryptographically random strings with a hex mode and a look-alike filter — built for tokens, IDs and codes, not just passwords.

Embed this tool on your site

<iframe src="https://techwhack.com/tools/generators/random-string-generator/embed" width="100%" height="440" frameborder="0" loading="lazy"></iframe>
<!-- Powered by TechWhack -->

A random string generator creates unpredictable strings of the length and character set you choose — handy for tokens, IDs, test data, coupon codes and API keys. Pick alphanumeric, hexadecimal, letters, numbers, symbols or your own characters, optionally exclude look-alikes, and generate as many at once as you need. It runs entirely in your browser using cryptographic randomness.

What to use it for

Random strings are ideal for API keys, session tokens, temporary passwords, database seed data, promo and voucher codes, filenames, and test fixtures. When the value will be entered manually, exclude look-alike characters; when it needs to be URL-safe, stick to the alphanumeric or hexadecimal sets.

FAQ

Is the randomness secure?Yes — it uses the browser’s crypto.getRandomValues, the same source used for cryptographic keys, not the predictable Math.random.

Can I generate many at once?Yes — set the count and you get a whole batch, one per line, ready to copy.

How is this different from the password generator?The password generator is tuned for memorable, strong account passwords. This makes raw random strings for developers — tokens, IDs and codes — with hex and custom character sets.