Bitcoin apps

We create fun and useful Bitcoin apps.

Bitcoin Converter

Convert Bitcoin to one of 50 fiat currencies in an app that can also be installed as a PWA.

Bitcoin Proof-of-Life

Take a photo with the QR image which is generated to prove that you were alive at the current block height.

Mining visualization
Mining visual

Experience the mining process yourself by creating a tiny time chain based on Proof-of-Work with a difficulty adjusment.

Elliptic sign
Elliptic sign

Sign messages with your own private key, or verify the messages of others. All using Bitcoin's secp256k1 elliptic curve.

Elliptic sign
Bitcoin calculator

A simple calculator to convert fiat to bitcoin and sats and vice versa. Multiply fiat currencies are supported.

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