Website and CLI for error detection with Cyclic Redundancy Checks.
https://scriptim..io/crc-calculator/
$ node index.js --help
CRC Calculator
Usage:
node index.js --help | --version | --generators
node index.js <data> (<generator> | --generator <generator name>) [--check] [--short]
Positional Arguments:
data Binary data string.
generator Binary string encoding the CRC polynomial.
Options:
-h --help Show this help page.
-v --version Show version.
-s --short Only show the resulting codeword.
-c --check Check a codeword for errors.
-g --generator Name of a predefined CRC polynomial.
-l --generators Show a list of predefined CRC polynomials.
$ node index.js 101001011 1010
101001011000 : 1010
1010
----
000001011000
1010
----
0001000
1010
----
0010
101001011010
$ node index.js 101001011010 1010 --check
101001011010 : 1010
1010
----
000001011010
1010
----
0001010
1010
----
0000
Error: false
$ node index.js 101001011 --generator crc-1
1010010110 : 11
11
--
0110010110
11
--
000010110
11
--
01110
11
--
0010
11
--
01
1010010111