Compare
TAR vs 7Z
TAR primarily bundles files and metadata; compression is often applied separately, as in tar.gz. 7Z is an archive format with built-in compression options. Choose for the recipient’s tools and the workflow.
Which format should you choose?
Use TAR when a Unix-oriented workflow or separate compressor is expected; use 7Z when the recipient can extract it and a single compressed archive is convenient.
Good fit for TAR
Bundle files and directory structure
- Unix software distribution and backups
Good fit for 7Z
Store or share collections of files
- Recipients with 7Z-compatible extraction tools
Basic information
| Field | TAR | 7Z |
|---|---|---|
| Extension | .tar | .7z |
| MIME type | application/x-tar | application/x-7z-compressed |
| Common uses | Bundle files and directory structure | Store or share collections of files |
| How to open | Use a tar-compatible tool. For tar.gz or similar, also decompress the outer layer. | Use a trusted 7Z-compatible extraction tool and inspect the file list before extraction. |
| Export or convert | When repackaging as ZIP, compare directory paths, file names, permissions, timestamps, and extracted content. | To make a ZIP, extract and repackage; then compare file paths, names, timestamps, and extracted contents. |
Choose by use case
Unix software distribution and backups
Bundle files and directory structure
TARRecipients with 7Z-compatible extraction tools
Store or share collections of files
7ZKey point 1
TAR bundles files but does not itself compress them.
More on the differencesKey point 2
7Z combines archiving with compression options.
More on the differencesMore on the differences
Confirm what the recipient can open and whether compression, permissions, links, or metadata must be preserved. Test extraction on the target system.
- TAR is often paired with gzip, xz, or another compressor.
- 7Z packages and compresses files in one archive.
- A .tar.7z workflow layers TAR inside 7Z and may add complexity.
Frequently asked questions
Is TAR compressed by itself?
Usually not. TAR bundles files; a separate compressor is commonly applied when a compressed tar archive is needed.