Free crc software for windows

pycrc is a calculation utility that will provide a CRC reference implementation in Python and a source code generator for C.
The used CRC variant can be chosen from a fast but space-consuming implementation to slower but smaller implementations suitable especially for embedded applications.
The following variants of the CRC algorithm are supported:
- bit_by_bit: the basic algorithm which operates individually on every bit of the augmented message (i.e. the input data with width 0-bits attached to the end). This algorithm is the easiest one to understand, because its a direct implementation of the basic polynomial division, but it is also the slowest among all possible variants.
- bit_by_bit_fast: a variation of the simple bit_by_bit algorithm, which doesnt need the augmented message. This algorithm might be a good choice for embedded platforms, where code space is a major concern.
- table_driven: the standard table driven algorithm. This algorithm works only on models with multiples of 8 as width. This is the fastest variant, because it operates on bytes as opposed to bits, and uses a look-up table of 256 elements, which might not be feasible for small embedded systems, though. Anyway, the number of elements in the look-up table can be reduced by means of the --table_idx_with command line switch. By using 4 bits (16 elements in the look-up table) a significant speed-up can be measured with respect to the bit-by-bit algorithms.
Main features:
- Generate the checksum of a string
- Generate the C header and source files for a client implementation. The algorithm can be chosen from fast but big implementation to slower but smaller implementations suitable especially for embedded applications.

F CRC Calculator 0.6 provides you with a powerful file manager to calculate CRC32 and MD5 from any file. A file's CRC is a code, which is characteristic to the file content. It processes several files, with a files list and support drag and drop. A progress bar is also included to process large files. Has MD5 support (which is like CRC, another very common error detecting code). Support of files over 2GB. It's possible to add all files, which are in a specific folder.

Quickly generate CRCs for your files using Dexadines CRC Tool This CRC Tool uses Dexadines proprietary Triple Interlaced CRC algorithm that combines three standard ISO-32 CRCs in a way that every byte of a file is part of two CRCs and every two consecutive bytes are part of all three CRCs.
The odds that a single file could be changed, yet pass a Triple Interlaced CRC test is just 1 in 4.6 million trillion (4,600,000,000,000,000,000), yet the speed penalty is typically just 15 percent slower than that of a standard CRC.
The FAT, FAT-32 and NTFS file systems are all supported. The maximum size of individual files is 4 GB.

CD Recover is a lossy disc copying program. CD Recover is a lossy disc copying program.
Designed for recovering as much information as possible from a corrupted file.
The program is optimized for recovering corrupt video data from CDs.
CD Recover will also support multiple file retrieval methods.
Say goodbye to CRC errors at the end of a file copy.

Read Check is a free tool which can check read-ability of files on any drives, compare files with CRC-32 method and copy Read Check is a free tool which can check read-ability of files on any drives, compare files with CRC-32 method and copy partially not readable files.