Paste packets with a CRC inside, one packet per line in HEX: the finder checks where the CRC is,
which known algorithm it is, and searches any CRC-8 and CRC-16 parameters.
More packets give a more reliable answer; packets of different lengths help to find Init and XorOut.
The data is processed only in your browser.
CRC width, bits (32: known algorithms only)
Probability
Packets
Algorithm
Poly
Init
Reflected
XorOut
CRC in the packet
* Other Init and XorOut pairs give the same CRC for these packets: the simplest one is shown.
Packets of more different lengths may tell them apart.
Probability: how unlikely it is that the variant matches these packets by chance,
given how many variants were tried. If no variant matches all packets, the ones that match most of them
are shown with the lines that don't match: such packets may be corrupted or use another CRC.
A known algorithm opens in the calculator with the data of the first matched packet.
Hover over a result to see it in the packets: the bytes the CRC is calculated over,
the CRC and a CRC that doesn't match.