Resumen
ZIP ha sido el estándar para la compresión de archivos desde 1989. 7Z es un formato más nuevo y de código abierto que supera a ZIP en compresión. RAR es el formato utilizado por WinRAR.
Esta guía compara los tres para ayudarte a elegir el formato adecuado para copias de seguridad, compartir y archivar.
Comparación cara a cara
Relación de compresión
ZIP: ZIP ofrece compresión moderada. Una carpeta de 100MB típicamente se comprime a 60-70MB.
7Z: 7Z logra archivos de salida 20-40% más pequeños que ZIP utilizando compresión LZMA2.
Winner: 7Z
Compatibilidad
ZIP: ZIP es compatible de forma nativa en Windows, macOS y Linux sin software adicional.
7Z: 7Z requiere el software 7-Zip o un archivador compatible.
Winner: ZIP
Cifrado
ZIP: ZIP soporta AES-256, pero la lista de archivos permanece visible cuando está cifrada.
7Z: 7Z soporta AES-256 que también cifra la lista de archivos - más seguro que ZIP.
Winner: 7Z
Velocidad de compresión
ZIP: ZIP comprime y descomprime muy rápidamente.
7Z: La compresión de 7Z es más lenta que ZIP en niveles de compresión altos. La descompresión es rápida.
Winner: ZIP
Código abierto
ZIP: ZIP es un estándar abierto. Herramientas gratuitas disponibles en todas las plataformas.
7Z: 7Z y 7-Zip son completamente de código abierto y gratuitos.
Winner: Ambos gratuitos
How the Three Archive Formats Differ
ZIP, the long-standing standard since 1989, most commonly uses the DEFLATE algorithm and compresses each file in the archive independently.[1][2] 7Z, the open-source format of 7-Zip, defaults to the LZMA/LZMA2 algorithm, which uses a much larger dictionary and range coding, and supports solid compression that treats multiple files as one continuous stream.[3][4] RAR, the proprietary format behind WinRAR, uses its own dictionary-based algorithm and also supports solid archives and recovery records.[5][6]
Compression Ratio
Solid compression and the large LZMA dictionary generally give 7Z and RAR higher compression ratios than ZIP, especially across many similar files, at the cost of slower processing and the loss of per-file random access.[4] ZIP's independent per-file compression is faster and allows any single file to be extracted without processing the rest, but it cannot exploit redundancy between files, so its archives are typically larger.[2]
Recovery and Encryption
RAR's distinctive features are built-in recovery records, which can repair a partially damaged archive, and clean multi-volume splitting for distributing large archives across several files.[6] All three formats support encryption; 7Z and modern ZIP and RAR offer AES, with 7Z and RAR additionally able to encrypt the list of file names. ZIP's legacy encryption is weak and should not be relied upon, though AES-based ZIP encryption is available in modern tools.[3]
Licensing and Availability
A key practical distinction is openness. ZIP and 7Z are open formats that can be created and read by free software without licensing restrictions.[1][3] Creating RAR archives requires the proprietary WinRAR or its command-line tool, although extracting RAR is more widely supported. This is the main reason RAR, despite strong compression and recovery features, is less commonly chosen for general distribution.[5]
Compatibility and Applications
ZIP is natively supported by Windows, macOS, and essentially every operating system without extra software, making it the default for sharing where compatibility matters most.[1] 7Z is used where maximum free, open compression is the priority and both parties can install 7-Zip or a compatible tool. RAR is used where its recovery records and solid compression are valued and licensed software is available.[5]
Convertir entre ZIP, 7Z y RAR
Convierte formatos de archivo comprimido gratis - se ejecuta completamente en tu navegador, sin cargas.
Convierte archivos comprimidos gratis