Cut yourself a nostr key with your name on it.

Every nostr identity is a public key. Most look like line noise — yours doesn't have to. Type a name and this page will press random keys until one begins with it.

one name per line — return starts the press and rolls another line; every key is checked against all lines at once, and you can add or change names even while the press is running

The npub alphabet, laid out like a printer's typecase — a sort is one piece of metal type. Four sorts were never cast — no b, i, o, or 1 — but the case lends you 8, l, and 0.

0% chance a key has your name so far 0:00

0 keys pressed – keys/sec – presses running

Why these letters?

npub keys use the bech32 alphabet, chosen so no character can be mistaken for another: b, i, o and 1 were dropped for looking like 8, l, 0 and l. Every npub in the world is spelled from these 32 sorts.

How it works

Your browser generates random secp256k1 keypairs — the same cryptography every nostr app uses — and checks each one's npub against your name. Finding one is pure luck; each letter multiplies the search by 32. The estimate above is honest about the odds on your machine.

Don't trust — verify

Using this page right here is safe: your keys are made on your own machine and are never sent anywhere — you can even turn off wifi before you press, if you like, and it works identically. The whole app is this one file, with no dependencies; view source and it's all there. If you'd enjoy holding the proof in your own hands, you can also download this page and run it from your desktop — same app, no internet needed, ever. Optional either way.

A name is not a passport

Your name in the key is a mnemonic, not proof of anything. Anyone can mine the same first letters you did — a five-letter prefix costs seconds — so a matching npub says “this is memorable,” never “this is really them.” What actually binds a name to a key is the whole key, or a verified address like you@example.com (NIP-05). Enjoy the vanity; don't let it do a passport's job.

Longer names

Each letter multiplies the work by 32, so length is the whole story. And it's a story about the processor alone: the hunt is pure CPU, so a faster machine helps and more memory does nothing. Eight letters or more belongs on a GPU, not in a browser — this page will say so rather than waste your battery.

npub Peppermint v1.0.0 (beta) · one file, no dependencies · open source — fine print below

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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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