7Z vs GZ
Una comparativa detallada de 7-Zip Archive y Gzip Compressed — tamaño de archivo, calidad, compatibilidad y cuál elegir según tu flujo de trabajo.
7-Zip Archive
Archives & Compressed7z uses the LZMA2 compression algorithm to achieve significantly better compression ratios than ZIP. It is open-source and supports strong AES-256 encryption.
Sobre los archivos 7ZGzip Compressed
Archives & CompressedGzip is a single-file compression format based on the DEFLATE algorithm. It is most commonly paired with TAR to create .tar.gz archives and is the standard compression for web content delivery.
Sobre los archivos GZComparativa de ventajas
7Z Ventajas
- 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.
GZ Ventajas
- Patent-free, royalty-free — that was the whole point in 1992.
- Universally supported on every OS.
- Fast compression and extremely fast decompression.
- Preserves original timestamps and filenames in the header.
- Streamable — can compress/decompress over pipes.
Limitaciones
7Z Limitaciones
- 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.
GZ Limitaciones
- Compresses one file at a time — needs tar for multi-file archives.
- Older algorithm — Zstandard, xz, and brotli all beat it on ratio.
- Single-threaded in the reference implementation (pigz fixes this).
- Not as aggressive as modern codecs on highly redundant data.
Especificaciones técnicas
| Especificación | 7Z | GZ |
|---|---|---|
| MIME type | application/x-7z-compressed | application/gzip |
| Compression | LZMA, LZMA2, PPMd, Bzip2, DEFLATE | — |
| Max file size | 16 EB (exabytes) | — |
| Encryption | AES-256 (content + filenames) | — |
| License | LGPL | — |
| Extensions | — | .gz, .tgz (with tar) |
| Algorithm | — | DEFLATE (LZ77 + Huffman coding) |
| Standard | — | RFC 1952 (gzip), RFC 1951 (DEFLATE) |
| Header | — | 10 bytes: magic, method, flags, mtime, extra, filename, comment, crc, isize |
Tamaños típicos de archivo
7Z
- Source code archive ~50% smaller than ZIP
- Linux distro installer 2–10 GB
- Virtual machine disk image 5–40 GB
GZ
- Plain text file 25-40% of original
- HTML page 20-30% of original
- Source code archive 15-30% of original
- Already-compressed file (JPEG, MP4) 99-100% (no gain)
¿Listo para convertir?
Convierte entre 7Z y GZ online, gratis y sin instalar nada. Subida cifrada, eliminación automática a los 60 minutos.
Preguntas frecuentes
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.