A .jar extension file is a Java Archive format file that is used to store a large number of files into one single file. The basic advantages of .jar extension files are data compression, archiving, decompression, unpacking of the archived file and electronic signing which is one of the advanced features of this format. The Java Development Kit (JDK) contains the Java Archive Tool that is used to perform the basic tasks on .jar extension files. The JAR format is similar to a ZIP file format and it was specifically developed to help download Java applets and its components that include class files, images and sounds in one single HTTP transaction.
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 JAR to RAR conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload JAR 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.
A .jar file contains the Java source code, a manifest file, XML based configuration data, JSON-based data files, images and sound clips as well as security certificates. These files use a standard compression algorithm and hence can be easily opened by extracting the contents of the file with a standard decompression tool like the tool used to extract .zip extension files.
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 JAR 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.