Free online CPIO Archive to TAR Archive converter. Files are processed locally in your browser — no uploads, 100% private.
Drop your .CPIO file here
or click to browse from your device
100% browser-based — no server uploads, no cloud processing
Free forever — no account or subscription required
Supports batch conversion for multiple files at once
Works on any device — desktop, tablet, and mobile
Results available in seconds — no server queue or wait time
Files are cleared immediately after processing for maximum privacy
CPIO Unix archive format
Unix tape archive format
Source: CPIO Unix archive format
Output: Unix tape archive format
100% browser-based processing — files never leave your device
Free with no file limits, watermarks, or registration required
Cannot be accessed without extraction first
Some archive formats require third-party software
Corrupted archives may result in loss of all contents
Backup and compression of file collections
Software distribution and deployment packages
Bundling multiple files for sharing
Storage footprint reduction
Use 7-Zip with .7z format for the highest compression ratio
Use ZIP for maximum cross-platform compatibility without extra software
Include a README.txt inside archives to explain the contents to recipients
Test archives by extracting a test copy before deleting originals
Drag & drop your file or click to browse
Files are processed instantly in your browser
Save your converted or processed file
Upload your CPIO file using the drop zone above. Your file is instantly converted to TAR format right in your browser — no server upload, no waiting.
Completely. Our converter processes your CPIO file 100% in your browser using client-side code. It never leaves your device or touches any external server.
It depends on the formats. Converting from lossless to lossy (e.g. PNG to JPEG) may reduce quality. Converting lossless-to-lossless (e.g. PNG to WebP lossless) preserves all quality.
Free, instant, and 100% private. Your files are processed locally in your browser.