Archive & Compression Formats: ZIP, 7Z & TAR
How archive containers bundle folders, deduplicate files, and protect data integrity.
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Format Comparison & Technical Specifications
| Output Format | MIME Type | Specification | Type |
|---|---|---|---|
| ZIP Archive | application/zip | ISO-IEC-29500 | Standard Compressed Archive |
| TAR Archive | application/x-tar | POSIX-TAR-SPEC | POSIX Consolidated Tape Archive |
| 7Z 7-Zip Archive | application/x-7z-compressed | SEVENZIP-SPEC | High-Ratio 7-Zip Container |
| GZ IP Archive | application/gzip | RFC-1952-GZIP | DEFLATE Compressed Single-File Archive |
| BZ2 BZIP2 Archive | application/x-bzip2 | BZIP2-SPEC | Burrows-Wheeler Compressed Archive |
| RAR Archive | application/vnd.rar | RAR-SPEC | Multi-Volume Compressed Archive |
Technical Specifications & Codec Breakdown
ZIP vs. 7Z: Compatibility vs. Extreme Compression
ZIP is built into Windows, macOS, Android, and Linux - double-click and it opens instantly without installing third-party apps. 7Z uses the advanced LZMA2 algorithm, shrinking big files (like software builds and game assets) 20% to 50% smaller than standard ZIP.
Why Linux Systems Use TAR.GZ
Standard ZIP files often lose Unix user permissions and symlinks. The TAR utility bundles multiple files and folder permissions into one continuous stream, and GZIP then compresses that stream, making .tar.gz the standard for server backups and Linux packages.
Already-Compressed Files Won't Shrink
Attempting to zip MP4 videos, JPEG photos, or MP3 music will barely reduce file size (often by less than 1%) because those files are already heavily compressed. Archiving them is still useful for bundling hundreds of files into a single download link.
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