Author Topic: FreeArc 0.40 - Open Source alternative to 7-zip/RAR  (Read 3641 times)

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Offline Markus

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FreeArc 0.40 - Open Source alternative to 7-zip/RAR
« on: February 26, 2008, 03:13:06 PM »
Homepage: http://freearc.sourceforge.net/

From the readme file:

Quote
I glad to present FreeArc archiver which implements many features you desired:

·         Free, open-source, with Win32 and Linux builds

·         Includes LZMA, PPMD, TrueAudio and generic Multimedia compression algorithms with automatic switching by file type

·         Filters that further improve compression: REP (finds repetitions at the distances up to 1gb), DICT (dictionary replacements for texts), DELTA (improves compression of tables in binary data), BCJ (executables preproccesor) and LZP (removes repetitions in texts)

·         Special compression algorithms are used in fast compression modes (GRZIP for texts and Tornado for binary data)

·         Overall, 11 compression algorithms and filters are included (compared to 3 in 7-zip and 7 in RAR) and this number still grows

·         Smart file sorting that groups similar files together and fully customizable sorting order (see below) further improve compression

·         Typically, FreeArc works 1.5-3 times faster than best programs in each compression class (ccm, 7-zip, rar, uharc -mz, pkzip) while retaining the same compression ratio; from technical grounds, it’s superior to any existing practical compressor

·         Moreover, you can use any external program as compressor or filter as easy as internal ones, with Precomp, ECM, CCM(x), PPMonstr, Durilca, LPAQ, UDA and PAQ are already preconfigured in arc.ini as shipped

·         You can fine-tune settings for each compression algorithm, and which compression algorithms are used for each type of files; you can create new compression profiles and modify existing ones; use -dic$ option in order to see all details of compression used

FreeArc also provides excellent archive management abilities (commands/options compatible with RAR have the same names):

·         Solid compression with smart updates (only changed solid blocks are recompressed)

·         User-definable solid block size (-s…) and file sorting order (-ds…), including customized filename ordering (arc.groups)

·         AES/Blowfish/Twofish/Serpent encryption with keyfiles support and ability to chain multiple ciphers (-p, -hp, --keyfile, --encryption=ALGORITHMS)

·         FAR and Total Commander plugins allow to create/browse/extract archives using the file manager interface

·         Ability to list/extract archives directly from Internet: arc x http://www.haskell.org/bz/arc.arc *.h

·         Archive protection and recovery, including recovery over Internet driven by CRCs of archive sectors (r/rr/-rr/--original=URL)

·         Ability to test archive before and after any operation (-tp/-t), including checking by recovery record and full archive test

·         Moving to archive (m), joining archives (j), archive recompression (ch), locking (k) and commenting (-z/cw)

·         Select files by size, time/age and name (-sl, -sm, -ta, -tb, -tn, -to, -n), select by/clear ARCHIVE file attribute (-ao/-ac)

·         Base directory on disk / inside archive (-dp/-ap), automatic generation of archive filenames (-ag)

·         Errors and warnings are reported to stderr and reflected in program exit code; --logfile option saves to the file all the information displayed

·         Configurable via arc.ini file and FREEARC environment variable; alternative settings may be selected  by means of -cfg/-env options

Compared to RAR and 7-zip, FreeArc at this moment lacks the following: GUI, SFX/installer, multi-volume archives, 64-bit version, storing of file attributes/extended timestamps/NTFS streams in the archive, bcj2, data segmentation. These are planned to be fixed in subsequent versions.

Plans for FreeArc 0.50 (scheduled for Feb 1):

·         GUI archive manager, Explorer right-click support

·         Smart selection of compression algorithm for each file depending on its contents

·         Support for localizations

·         SFX


Cheers,
Markus

Offline Nemo

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Re: FreeArc 0.40 - Open Source alternative to 7-zip/RAR
« Reply #1 on: February 26, 2008, 10:29:06 PM »
Tönt interessant. Nutzt schon jemand dieses Programm, kann er es weiterempfehlen?

MfG,
Nemo.

Offline Markus

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Re: FreeArc 0.40 - Open Source alternative to 7-zip/RAR
« Reply #2 on: February 27, 2008, 07:33:46 AM »
Tönt interessant. Nutzt schon jemand dieses Programm, kann er es weiterempfehlen?
Ich habe gestern mal ein paar Tests damit durchgeführt, und der erste Eindruck war recht positiv. Bei gleicher Packdichte ist es einen Tick schneller als 7-zip beim Erzeugen von Archiven, aber ob das immer so ist, möchte ich in weiteren Tests herausfinden.

IMO lohnt es sich, diesen Archiver im Auge zu behalten. Auf der Homepage werden übrigens auch externe GUIs angeboten.



Cheers,
Markus

Offline Siedlerchr

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Re: FreeArc 0.40 - Open Source alternative to 7-zip/RAR
« Reply #3 on: February 29, 2008, 05:09:47 PM »
Hört sich interessant an, habe ich das jetzt richtig verstanden, das kann auch  dateien  im rar Format packen?


Übrigens finde ich den Thread Titel etwas irreführend, denn 7zip ist auch OpenSource