7Z vs LZ4 — Differences, File Size & When to Use Each

7Z vs LZ4

Ein detaillierter Vergleich von 7-Zip Archive und LZ4 Compressed — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.

7Z → LZ4 umwandeln LZ4 → 7Z umwandeln

7-Zip Archive

Archives & Compressed

7z uses the LZMA2 compression algorithm to achieve significantly better compression ratios than ZIP. It is open-source and supports strong AES-256 encryption.

Über 7Z-Dateien

LZ4

LZ4 Compressed

Archives & Compressed

LZ4 is an extremely fast lossless compression algorithm focused on speed over compression ratio. It can compress at over 500 MB/s per core and decompress at multiple GB/s, making it the standard choice for real-time and in-memory compression.

Über LZ4-Dateien

Vorteilsvergleich

7Z Vorteile

Outstanding compression ratio — typically 20–50% smaller than ZIP, 10–30% smaller than RAR.
Completely free and open source.
AES-256 encryption of both content and filenames.
Supports enormous archives (16 exabytes).
Multi-threaded compression on modern CPUs.

LZ4 Vorteile

Decompression speed — approaches memcpy throughput.
Very fast compression — can keep up with SSD write speeds.
Stable format — reference implementation unchanged for years.
Widely deployed in databases, filesystems, and kernels.
BSD-licensed library.

Einschränkungen

7Z Einschränkungen

Not natively supported on Windows before Windows 11 23H2 or macOS — requires a separate tool.
Slower compression than ZIP (though decompression is fast).
No built-in recovery records like RAR.
Less ubiquitous in email and casual sharing than ZIP.

LZ4 Einschränkungen

Compression ratio lags gzip by 20-30%.
Not designed for long-term archival where ratio matters.
Older than zstd, which beats LZ4 at comparable speed at slightly better ratio.
Rare as a user-facing format — lives mostly inside databases and filesystems.

Technische Spezifikationen

Spezifikation	7Z	LZ4
MIME type	application/x-7z-compressed	application/x-lz4
Compression	LZMA, LZMA2, PPMd, Bzip2, DEFLATE	—
Max file size	16 EB (exabytes)	—
Encryption	AES-256 (content + filenames)	—
License	LGPL	BSD 2-Clause (library), GPL v2 (CLI)
Extensions	—	.lz4
Algorithm	—	LZ77 variant with fast byte-level parsing
Typical integrations	—	Linux kernel, ZFS, Kafka, RocksDB, Cassandra

Typische Dateigrößen

7Z

Source code archive ~50% smaller than ZIP
Linux distro installer 2–10 GB
Virtual machine disk image 5–40 GB

LZ4

Text file 40-60% of original
Already-compressed data (JPEG, MP4) 99%+ (no gain)
Database page (typical) 55-70% of original

Bereit zum Umwandeln?

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Häufig gestellte Fragen

7Z is an open-source archive format from the 7-Zip project. It uses the LZMA2 compression algorithm which achieves significantly better compression ratios than ZIP or RAR, making it ideal for archiving large files and datasets.

7Z is an open-source archive formato de the 7-Zip project. It uses the LZMA2 compressão algorithm which achieves significantly better compressão ratios than ZIP ou RAR, making it ideal para archiving large arquivos e datasets.

7Z files open with 7-Zip (free, Windows), PeaZip (cross-platform, free), Keka (macOS), and The Unarchiver (macOS). Windows does not natively support 7Z, so third-party software is required.

7Z arquivos abrir com 7-Zip (free, Windows), PeaZip (cross-platform, grátis), Keka (macOS), e The Unarchiver (macOS). Windows does not natively support 7Z, so third-party software is required.

Use 7Z when maximum compression is the priority, such as software distribution and backups. Use ZIP when the recipient needs to open the file without installing extra software, since ZIP is natively supported everywhere.

Use 7Z when máximo compressão is the priority, como software distribution e backups. usar ZIP when the recipient needs to abrir o arquivo sem installing extra software, since ZIP is natively suportado everywhere.