tools ▸ random strings

Random strings,in bulk.

API keys, app secrets, salts, coupon codes — generate up to 500 cryptographically random strings at once, in the format you need.

Character set

Length

Count

Prefix (optional)

runs 100% in your browser — nothing is uploaded or stored

random strings ▸ explained

What you need
to know.

Generate secure random strings, API keys, tokens and hex secrets in bulk.

hex

64 hex characters = 256 bits — ideal for APP_KEY, JWT secrets and HMAC keys.

base64url

Uses A–Z, a–z, 0–9, - and _ so tokens can go straight into URLs and headers.

custom

Exclude look-alike characters (0/O, 1/l) for codes humans have to type.

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faq ▸ before you buy

Is this safe for generating API keys?+

Yes. Strings are generated with crypto.getRandomValues() in your browser and never transmitted.

How long should an API key be?+

32+ characters of base62 (~190 bits) or 64 hex characters (256 bits) is a solid default.

Can I generate many at once?+

Yes — up to 500 strings per batch, one per line, ready to copy or download.

~$ provision --region in ✓ done in 47s