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what is ARC format

PeaZip is a free cross-platform file archiver utility that provides an unified portable GUI for many Open Source technologies like 7-Zip, FreeArc, PAQ, UPX... free alternative to WinRar, WinZip and similar proprietary software.
- Create 7Z, ARC, BZ2, GZ, *PAQ, PEA, QUAD/BALZ, TAR, UPX, WIM, XZ, ZIP files
- Open and extract ACE, ARJ, CAB, DMG, ISO, LHA, RAR, UDF, ZIPX files and more,
over 180 archive types supported
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archives opener and extractor, batch creation and extraction of multiple archives at once, convert files, create self-extracting archives, split and join files, strong encryption with two factor authentication, encrypted password manager, secure deletion, find duplicate files, calculate hash and checksum, export job definition as script.

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What is ARC file format, FreeArc archives



ARC extension


ARC extension designates the native archive format developed for  FreeArcwhat is .arc file, a modern open source file archiver created by Bulat Ziganshin, featuring high level of compression (11 lossless data compression algorithms and filtes are supported, including LZMA and PPMD) with good efficiency (Tom's Hardware comparativearc vs rar vs 7z benchmark) comparable or better than rar format and in many cases also of 7z format, strong encryption (AES, Blowfish, and AES contest finalist algorithms Twofish, and Serpent), and ability to create recovery records (option which is notably featured by proprietary RAR format but not by open format 7Z). The file format is also known with WRC extension.

arc format features

This format must not be confused with 1985 SEA's ARC format.arc file definition, using same .arc file extension. The company pionereed the data compression in BBS era, but ARC program fell in popularity after the introduction of more efficient Phil Katz's PKARC, which later developed largely modified and improved ZIP format for PKZIP program, in response to the notorious lawsuit ensued between SEA and PKWARE.
PeaZip features creation and extraction of ARC files: create, open, browse, and extract ARC archives, convert any supported archive to .arc format and vice-versa. Also, the application supports creation of arc-format self extracting archives (SFX), so recipient will not need a FreeArc compatible extractor when receiving one of those self-extracting files.
PeaZip currently does not support reading, nor writing, the unrelated SEA's ARC format.

what are arc files

arc format compression encryption features


Read more .arc file type FreeArc Wikipedia entryFreeArc software, PPMdWikipedia prediction by partial matching and LZMA/LZMA2Lempel Ziv Markov chain algorithm data compression algorithms, AESwikipedia aes algorithm, Twofishtwofish algorithm, SerpentSerpent algorithm ciphers.

  



  

.ARC

Author Bulat Ziganshin, 2007

SPEED arc format specs

Arc format features good speed. Very efficient implementation makes it significantly faster than 7Z compression and extraction (and marginally faster than RAR), with comparable compression ratio.







COMPRESSION RATIO arc format specifications

Arc archives features very good compression ratio. Comparable to 7-Zip with LZMA / LZMA2 compression, consistently better than RAR format, but inferior to PAQ compressors family.

ADVANCED OPTIONS arc format aes sperpent tworfish encryption

Arc format features a very good selection of advanced functions. Built-in support for AES, Twofish and Serpent encryption, and optional creation of recovery records - ARC is one of the few file types alongside RAR providing error recovery feature.








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FAQ > Archive file types > What are arc files

Topics about FreeArc's ARC extension, what is ARC file format, specifications, what are ARC format features (lzma, ppmd compression and aes, setpent, twofish encryption), characteristics, advantages and disadvantages compared to other archive types:
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Tag Cloud
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