CPIO Converter

Convert CPIO archives to 7Z, ARC, ARJ, BZ...online. Upload, convert, and download instantly — no software required.

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What is CPIO ?

CPIO is a Unix archive format used to bundle files and their metadata into a single archive, commonly found in Linux initramfs images, RPM packages, and Unix system backups.

CPIO format  ▶

How to Convert CPIO in a Few Simple Steps

  1. Upload your CPIO file
    Drag & drop your CPIO file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose the output format
    Pick any supported format you want to convert to.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.

Why Convert CPIO files?

CPIO is a Unix and Linux system-level format, and outside of command-line tools like cpio itself or specialized archive managers, most everyday software — especially on Windows and Mac — has no idea what to do with it. Converting a CPIO archive to a more widely recognized format like ZIP makes its contents accessible to anyone, on any platform, without needing Unix-specific tooling.

This matters if you're extracting files from an initramfs image, pulling contents out of an RPM package for inspection, or simply need to hand off a Unix-originated archive to someone working on a different operating system. Converting removes the dependency on command-line utilities and specialized software.

Whether you're a developer debugging a boot image or just need to open an old Unix backup, converting CPIO to a standard archive format makes the files usable without needing a Linux environment on hand.

Start converting your CPIO files now — it's fast, easy, and supports any output format you need.