JavaScript CRC-32 Source Code

Compute CRC-32 cyclic redundancy check. This implementation allows using any custom polynomial. The crc32_generate() function first generates a polynomial-derived table for faster CRC-32 computation.

This source code is in the public domain. You may use, share, modify it freely, without any conditions or restrictions.

Download source code:

• crc32.js

See it in action, try it online now:

• Compute CRC-32 from text
• Compute CRC-32 from a file

See also JavaScript source code for base64, Luhn.

Source Code