XZ vs ZST
Ein detaillierter Vergleich von XZ Compressed und Zstandard Compressed — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
XZ Compressed
Archives & CompressedXZ provides very high compression ratio using LZMA2, common in Linux packages.
Über XZ-DateienZstandard Compressed
Archives & CompressedZstandard (Zstd) is a fast lossless compression algorithm developed by Yann Collet at Facebook. It provides compression ratios comparable to zlib while being 3-5x faster at both compression and decompression, making it ideal for real-time data processing.
Über ZST-DateienVorteilsvergleich
XZ Vorteile
- Best-in-class compression ratio among mainstream tools.
- Streaming-capable — can pipe through network.
- Multi-threaded compression available.
- Mature on every Linux distribution.
- Supports integrity checking (CRC32, CRC64, SHA-256).
ZST Vorteile
- Extremely fast decompression (~2 GB/s on modern CPU).
- Scalable: very fast at level 1, near-xz ratios at level 22.
- Dictionary support for small-payload efficiency.
- Multi-threaded by default.
- Standardized (RFC 8478), BSD-licensed reference.
Einschränkungen
XZ Einschränkungen
- Slow compression at high levels — 3-5× slower than gzip.
- Memory-hungry: xz -9 can need 700+ MB to compress.
- 2024 supply-chain backdoor damaged trust in the project.
- Zstandard outperforms xz at similar ratios with less memory.
ZST Einschränkungen
- Newer than gzip/bzip2 — some legacy tools still lack support.
- At extreme compression levels, xz can still win on ratio.
- Memory usage at high levels is significant.
- Consumer archiving tools (Windows Explorer) lag behind.
Technische Spezifikationen
| Spezifikation | XZ | ZST |
|---|---|---|
| MIME type | application/x-xz | application/zstd |
| Extensions | .xz, .txz | — |
| Algorithm | LZMA2 | LZ77 variant + entropy coding (FSE/Huffman) |
| Standard | The .xz File Format specification 1.1.0 | RFC 8478 (2018) |
| Integrity checks | None, CRC32, CRC64, SHA-256 | — |
| Extension | — | .zst |
| Compression levels | — | 1-22 (plus negative "fast" levels) |
Typische Dateigrößen
XZ
- Text/source archive 15-25% of original
- Linux kernel (.tar.xz) ~125 MB
- Firefox source code ~600 MB
ZST
- Default level 3 on source code 28-35% of original
- Level 22 ultra on source code 14-18% of original
- Linux kernel (.tar.zst, level 19) ~130 MB
Bereit zum Umwandeln?
Wandle zwischen XZ und ZST online um, kostenlos und ohne Installation. Verschlüsselter Upload, automatische Löschung in 60 Minuten.
Häufig gestellte Fragen
XZ (XZ Compressed) is an archive format used to bundle multiple files and folders into a single compressed file. The archive preserves the directory structure and typically reduces total size via compression. XZ sits in the archives & compressed family and has specific strengths around compression ratio, speed, or platform support.
XZ (XZ comprimido) is an archive formato used to bundle multiple arquivos e folders em a single comprimido file. The archive preserves the directory structure e tipicamente reduces total size via compressão. XZ sits no archives & comprimido family e has specific strengths around compressão ratio, speed, ou plataforma support.
7-Zip, WinRAR, The Unarchiver (macOS), and the built-in archive utilities on Windows and macOS open most XZ files. For command-line extraction, 7z, unar, or the format-specific tool handles XZ cleanly. If your extractor does not recognise XZ, convert to ZIP first — ZIP opens on every operating system without extra software.
7-Zip, WinRAR, The Unarchiver (macOS), e the built-in archive utilities no Windows e macOS abrir most XZ files. para command-line extraction, 7z, unar, ou the formato-specific tool handles XZ cleanly. If your extractor does not recognise XZ, converter to ZIP first — ZIP opens on every operating system sem extra software.
Upload the XZ to KaijuConverter and pick ZIP, 7Z, TAR.GZ, or RAR as the target. Our pipeline extracts the original archive and re-compresses the contents into the target format. File permissions, timestamps, and directory structure are preserved where both formats support them.
Depends on the goal. ZIP is the universal baseline — every OS extracts it out of the box. Formats like 7Z or TAR.GZ compress better but require specific tools. XZ may win on compression ratio, password support, or OS integration for specific workflows; ZIP wins on raw compatibility.