CPIO is one of the numerous file archivers that were released for the UNIX operating system. It was developed as a utility to facilitate tape backups of files and file systems as single archive files with the .cpio filename extension. It made its appearance on the UNIX platform in 1979 in Version 7 of the operating system. Compression is not supported by the CPIO format by default, however archived files can later be compressed using popular compression utilities such as GZIP.
The .rar filename extension is a popular and partially open archive file format associated with the compression and decompression tool WinRAR. The format was developed by Eugene Roshal with its initial release in 1993. It, like many other archive formats, acts as the compressed data container for one or several files. The archive format can maintain the directory structure of the compressed archive even when unpacked to a directory. The RAR file format supports multi volume file compression where an archive is saved as a sequence of several files of a given size.
FreeFileConvert uses tuned encoding for CPIO to RAR conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload CPIO files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized RAR results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent RAR audio with dependable progress tracking.
CPIO files are stored to disk as binary files. Meta information is also stored in binary as per the original specification. There have been revisions of the format however that used ASCII character set representation to store Meta information. The format has cross compatibility with the TAR archiving format (allowing you to open TAR archives) and can even recognize different byte-order arrangement of different archiving formats. In the POSIX.1-1988 standard the cpio format has a file limitation of 8 GB.
The RAR archive format supports compression, file spanning, and error recovery. Compression is carried out using a prediction by partial matching algorithm and the lossless compression algorithm LZSS. The RAR file format has a range in file size from as low as 20 bytes to 8 exbibytes less 1. It also supports AES encryption at 256bits as well as the CRC32 checksum and BLAKE2 file hash algortihms.
Upload your archive file in the CPIO format from your device, Dropbox, or Google Drive.
Select RAR as the output format and click Convert. Adjust optional settings if needed.
Download the converted archive file. Each file stays available for up to 5 downloads.