File Details |
|
| File Size | 0.3 MB |
|---|---|
| License | Open Source |
| Operating System | Windows 2000/9x/Server 2003/XP |
| Date Added | September 27, 2009 |
| Total Downloads | 17,051 |
| Publisher | Markus & László |
| Homepage | UPX (Ultimate Packer for eXecutables) |
Publisher's Description
UPX is a free, portable, extendable, high-performance executable packer for several different executable formats. It achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks because of in-place decompression.
Latest Reviews
KAK reviewed v3.04 on Jan 27, 2011
i use UPX! since 2001 and after 10 years i have found
no other packer with this PERFECT compressing results.
Big Thanks to the Developer for this nice peace of work!
Joseph A reviewed v3.03 on Jul 29, 2008
To "therube" below:
You are right on this. That is why I suggested that they include it in FileForum yesterday night.
You can contribute too: whenever you find that there is a program or a new version of an existing program which was not posted in FileForum, suggest it to the Forum. They usually act fast on your suggestion.
To do this, click on "List a Program" at the top of the page, whose address is
http://fileforum.betanews.com/addprogram
therube reviewed v3.03 on Jul 29, 2008
Just to point out, though this is is just (7-29-08) appearing in betanews, the 3.03 version has been out for 3 months now.
anomoly reviewed v3.01 on Aug 1, 2007
My portable Alpx folder has these files:
COMDLG32.OCX
LZOP100 & 101.EXE
upx.1, .doc, & .html
UPX291.EXE (upx.exe)
Must have for portable standalone aps.
brusco reviewed v3.01 on Aug 1, 2007
best exe packer out there. been using it since 1.02 and has successfully compressed exe,ocx,dlls for me about 99% of the time.
I love it.
guti reviewed v3.0 on May 1, 2007
Yeah, the old good boy, is still the best!
Kal-El reviewed v2.92 Beta on Mar 6, 2007
LZMA FTW! faster and better compression than --best
anomoly reviewed v2.92 Beta on Jan 25, 2007
By replacing the exe in alpx (UPX291.EXE) and renaming it exactly I see no problem with alpx's gui either.
http://fileforum.betanew...etail/Alpx/1110410043/1
reets reviewed v2.92 Beta on Jan 24, 2007
Absolutely the best. Used a LOT of other exe packers and this one is far above any other. Just waiting for .NET support then I am all set. (hopefully they add support for it)
![[deXter]](https://www.gravatar.com/avatar/228cde722f0fa085f3ff9a4709a93060?s=16){kind=small}
[deXter] reviewed v2.91 Beta on Nov 30, 2006
Well, about time that someone submitted the 2.9x beta series to FileForum :)
The biggest change in the 2.9x series is the implementation of the LZMA algorithm. What this means is that your files have a MUCH better compression (even better than the --best option).
For testing purposes, I compressed the AutoHotkey compiler executable (AutoHotkeySC.bin) with the --best and --lzma options:
Original Size: 391 KB
--best option: 205 KB
--lzma option: 193 KB
Another important point to note is that the --lzma option is much more faster and efficient than the --best option. Check out the ratios for Firefox 2 executable:
Original size: 7,604,331
--best option: 3,246,592
--lzma option: 2,867,200
Truly, this is quite a significant improvement and brings UPX at par with other compressors that have already implemented lzma. But what seperates UPX from the competitors is the fact that UPX is rock solid and the exes are always working. I haven't come across a single exe that stopped working because of UPX. On the other hand, I've seen plenty of corrupted exes from the competitors.
UPX also supports a wide range of executables including *nix binaries, device drivers, 16 bit executables.. and.. even atari and PSone exes!
It's this stability and portability that makes UPX the prefered choice.
KAK reviewed v3.04 on Jan 27, 2011
i use UPX! since 2001 and after 10 years i have found
no other packer with this PERFECT compressing results.
Big Thanks to the Developer for this nice peace of work!
Joseph A reviewed v3.03 on Jul 29, 2008
To "therube" below:
You are right on this. That is why I suggested that they include it in FileForum yesterday night.
You can contribute too: whenever you find that there is a program or a new version of an existing program which was not posted in FileForum, suggest it to the Forum. They usually act fast on your suggestion.
To do this, click on "List a Program" at the top of the page, whose address is
http://fileforum.betanews.com/addprogram
therube reviewed v3.03 on Jul 29, 2008
Just to point out, though this is is just (7-29-08) appearing in betanews, the 3.03 version has been out for 3 months now.
anomoly reviewed v3.01 on Aug 1, 2007
My portable Alpx folder has these files:
COMDLG32.OCX
LZOP100 & 101.EXE
upx.1, .doc, & .html
UPX291.EXE (upx.exe)
Must have for portable standalone aps.
brusco reviewed v3.01 on Aug 1, 2007
best exe packer out there. been using it since 1.02 and has successfully compressed exe,ocx,dlls for me about 99% of the time.
I love it.
guti reviewed v3.0 on May 1, 2007
Yeah, the old good boy, is still the best!
Kal-El reviewed v2.92 Beta on Mar 6, 2007
LZMA FTW! faster and better compression than --best
anomoly reviewed v2.92 Beta on Jan 25, 2007
By replacing the exe in alpx (UPX291.EXE) and renaming it exactly I see no problem with alpx's gui either.
http://fileforum.betanew...etail/Alpx/1110410043/1
reets reviewed v2.92 Beta on Jan 24, 2007
Absolutely the best. Used a LOT of other exe packers and this one is far above any other. Just waiting for .NET support then I am all set. (hopefully they add support for it)
[deXter] reviewed v2.91 Beta on Nov 30, 2006
Well, about time that someone submitted the 2.9x beta series to FileForum :)
The biggest change in the 2.9x series is the implementation of the LZMA algorithm. What this means is that your files have a MUCH better compression (even better than the --best option).
For testing purposes, I compressed the AutoHotkey compiler executable (AutoHotkeySC.bin) with the --best and --lzma options:
Original Size: 391 KB
--best option: 205 KB
--lzma option: 193 KB
Another important point to note is that the --lzma option is much more faster and efficient than the --best option. Check out the ratios for Firefox 2 executable:
Original size: 7,604,331
--best option: 3,246,592
--lzma option: 2,867,200
Truly, this is quite a significant improvement and brings UPX at par with other compressors that have already implemented lzma. But what seperates UPX from the competitors is the fact that UPX is rock solid and the exes are always working. I haven't come across a single exe that stopped working because of UPX. On the other hand, I've seen plenty of corrupted exes from the competitors.
UPX also supports a wide range of executables including *nix binaries, device drivers, 16 bit executables.. and.. even atari and PSone exes!
It's this stability and portability that makes UPX the prefered choice.
[deXter] reviewed v2.03 on Nov 28, 2006
You guys should try out the new UPX 2.90 (Beta). It's got LZMA compression atlast! And it knocks the socks off all other options (--best/--force/--brute, etc).
Das mod reviewed v2.03 on Nov 27, 2006
sweet prog.
The MAZZTer reviewed v2.03 on Nov 27, 2006
I use this tool to compress programs for use on my USB thumb drive. Works excellently! It can even compress linux binaries from within Windows!
--brute is fun to use to get those last few bytes out, but it usually doesn't give you a better size than --best, so that is my recommended option. If you run across a binary already compressed, you can -d it to decompress it and recompress it with --best to see if you can squeeze any more out of it. :)