Format reference

7Z Format Hub

7z (.7z) archives use LZMA/LZMA2 compression for high ratio and support solid blocks, encryption, and multi-volume sets. Use sample .7z files to test extraction libraries, encryption parameters, and multi-part archival.

Open Sample Page Open Manifest JSON
4 Files
436 Downloads (30d)
application/x-7z-compressed
Related Formats in Archive

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ZIP (67) ZST (8) BZ2 (4) GZ (4) RAR (4) TAR (4) TAR.XZ (4) TBZ2 (4)
Related Comparisons

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ZIP vs 7Z

Assess portability of ZIP against compression gains from 7Z.

Open Comparison
Format Strategy Links

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Open 7Z FAQ

Best Format Guides

Best Archive Format for Cross-Platform Download Bundles

Best Format for Use Cases

Best Format for Compressed Download Bundles Best Format for High-Compression Archive Transfer Best Format for Cross-Platform Download Bundles

Conversion Guides

How to Convert 7Z to ZIP How to Convert ZIP to 7Z How to Convert 7Z to ZST How to Convert ZST to 7Z How to Convert 7Z to BZ2 How to Convert 7Z to GZ
Implementation Notes

Keep implementation notes explicit.

Use the manifest endpoint for deterministic fixture selection in CI, then validate MIME/type detection against actual parser output.

If this format appears in multiple categories, prefer category-specific hub pages to keep test assumptions aligned with real usage.