Sobre os arquivos RAR

Arquivo RAR

Lançado em 1993 Por Eugene Roshal

RAR (Roshal Archive) é um formato de arquivo compactado proprietário criado por Eugene Roshal em 1993. Foi popular nos anos 2000 por sua compressão superior ao ZIP e features avançadas (recuperação de erros, divisão em volumes). Em 2026, embora ainda exista, está sendo substituído por 7Z (open source, melhor compressão) e ZIP (universalidade). Requer WinRAR ou similar para criar; extração é gratuita.

Família

Archives & Compressed

Extensão

.rar

Tipo MIME

application/vnd.rar, application/x-rar-compressed

Pode ser usado como

Entrada

A história

COMO NASCEU O
FORMATO RAR.

RAR — Roshal ARchive — was created in 1993 by Russian engineer Eugene Roshal and is still developed by his company win.rar GmbH. Unlike ZIP the format is proprietary, though Roshal published the decompression algorithm so anyone could read RAR files freely. The format's strength was always compression ratio: at every version bump, RAR squeezed files 5–15% tighter than ZIP, aided by a solid archive mode that compresses multiple files as one continuous stream.

RAR is distributed via the classic WinRAR shareware ritual: a 40-day trial that famously never actually stops working. This quirk made WinRAR one of the most-installed utilities on Windows from the late 1990s onward, and RAR files remain a common format for large downloads, game mods, and file-sharing releases.

CURIOSIDADES E
FATOS INTERESSANTES.

WinRAR's 40-day trial nag screen is the longest-running joke in shareware history — it has been "expiring" since 1995.

RAR supports "recovery records" — redundant data that can repair corrupted archives after disk errors.

A solid RAR archive compresses multiple files as one big stream, sometimes beating ZIP by 30%.

The RAR5 format, introduced in 2013, added 256-bit AES, BLAKE2 hashing, and better Unicode.

Writing RAR files requires a license. Reading them has always been free.

VANTAGENS E
LIMITAÇÕES.

Vantagens

Better compression than ZIP — often 10–30% smaller archives.
Built-in recovery records can repair bit rot and damaged downloads.
Solid archives exploit redundancy across many files.
Strong AES-256 encryption in RAR5.
Can split large archives into fixed-size parts for transfer.

Limitações

Proprietary — creating RAR files requires a paid license.
Not built into Windows until 2023 (native support finally added in Windows 11 23H2).
Slower to compress than ZIP.
Older RAR versions cannot open newer RAR5 archives.

Tamanhos típicos de arquivo

Source-code bundle

~10–20% smaller than equivalent ZIP

Game mod package

500 MB – 5 GB

Split archive for large file transfer

Custom (50 MB per part typical)

Especificações técnicas

MIME type: application/vnd.rar
Compression: Roshal's algorithm (LZSS + Huffman)
Max file size: 8 EB (exabytes) in RAR5
Encryption: AES-128 (RAR4), AES-256 (RAR5)
Recovery: Optional recovery records against corruption

CONVERTER A PARTIR DE
RAR

rar zip rar 7z rar tar rar gz rar bz2 rar xz rar lzma rar zst rar lz4

Casos de uso comuns

File sharing, multi-part archives, error-resilient storage.