JAR to CPIO converter
Turn JAR into CPIO
Send us the JAR you already have and take away a CPIO. Handled on our servers, deleted the moment the job ends.
or drag and drop files here
JAR files • Max 50MB per file • Up to 10 files
Both formats, briefly
JARIN
A JAR is a ZIP archive with a manifest inside, used to ship Java classes, libraries and their resources as one unit. Everything it holds is ordinary compressed data. Convert one when you want to inspect or repackage the contents with tools that know nothing about Java.
CPIOOUT
CPIO stores a stream of files together with their metadata, and it is still standard where Linux boots from an initramfs image or where an RPM package carries its payload. Desktop software rarely opens it directly. Convert a CPIO archive when you need to see what a boot image or a package actually contains.
Three steps, start to finish
Add your JAR
Drag it onto the page, or pull it in from your computer, Google Drive or Dropbox.
CPIO is preselected
This page is already set to write CPIO. Switch the target if you change your mind.
Take the CPIO
Grab the result the moment the job clears. Your upload is wiped straight afterwards.