godelify

godelify

encode any file or text as a prime number

encode<br>decode

source

text<br>file

choose file

no file chosen<br>download sample (hello_world.c)

zlib compression

encode<br>cancel

prime<br>copy

prime number

decode

recovered source<br>copy

download

godelify encodes any file as a prime number using<br>Gödel numbering.<br>The file is compressed, treated as a large integer, and a small suffix is appended<br>until the result is prime. Strip the suffix, decompress, and you recover the original file exactly.

Inspired by Phil Carmody, who in 2001 encoded the banned DeCSS DVD-decryption program as a<br>1401-digit prime. Possessing a number cannot be illegal.

how it works →