No tool can change a RAR file into another format without first reading the content. Extraction is always part of the process, but a good converter does it in the background so you don't have to. Softaken Archive Converter Software is built for this. It can take RAR files and convert them into ZIP, 7Z, TAR, TAR.GZ, and more. The process is quick, safe, and works in bulk. A free demo is available so you can test before full use.