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 | 17,036 |
| 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. :)
VictorAnderson reviewed v2.03 on Nov 27, 2006
hey eblade - uhhh I don't think you're using the program properly because this thing does work.
I use it mostly to compress stuff for my pocketpc and it has made a HUGE difference in how many apps I can load into main memory on it - plus it runs a bit faster too.
eblade- what I do is copy the .exe I want to compress to a working folder - compress it - then overwrite the orginal with my compressed one. Obvisouly you're not ever removing the orginal, uncompressed file.
pluto2se reviewed v2.01 on Jun 21, 2006
ignore eblade's comment all together, it's not true, upx is great!
tereshchenko reviewed v2.01 on Jun 20, 2006
eblade, you know nothing about computers, aren't you?
howe reviewed v2.01 on Jun 20, 2006
eblade, you suck. What a moron.
eblade reviewed v2.00 on May 9, 2006
We may have a wee bit of a problem, in that this program appears to actually be a farce:
When you compress an exe, the new file is smaller, but your amount of free space is also decreased by the size of the new file. So, you're losing space instead of gaining space. Where is it putting the original file? That, I don't know. But, it would appear that this is similar to an old joke program that would reduce your files all to ridiculously small sizes, by making them a very small executeable that would then run them from a hidden location on your drive.
I don't see where it is actually doing this, so I may be incorrect, however, after running this on a bunch of programs, I noticed that when I started I had 1.8gb free, and now i have 1.0gb free.
melkor reviewed v2.00 on Apr 28, 2006
OMG they aren't dead after all. I've been watching this project slowly die for that last few years. Good to see they are finaly getting things together.
prm753 reviewed v2.00 on Apr 27, 2006
Excellent program. I use it to compress several items and they all still work perfectly after they have been compressed. If you are a developer of software I would highly recommend UPX to compress your programs.
eviljolly reviewed v2.00 on Apr 27, 2006
Highly effective EXE packer. Not only does it make your programs smaller, it makes them more difficult to crack.
shantanu reviewed v2.00 on Apr 27, 2006
Woohoo...finally v2.0 is here! The best!!!
Das mod reviewed v2.00 on Apr 27, 2006
no bad ....
korpse reviewed v2.00 on Apr 27, 2006
I definetly have to say that this is one of the best programs of all time. Good work!
hparra reviewed v2.00 on Apr 27, 2006
My all-time favourite: fast, effective and free! Other coders should learn from UPX instead of releasing bloated commercial packers/encryptor which are way behind of this small treasure.
Don't miss it, you won't regret it!
Ashis reviewed v1.93 Beta on Sep 29, 2005
Wow....
Never expected!
Hmm....Great Tool.
I expect it to be popular in future if it comes out with a GUI.
BlackDex reviewed v1.93 Beta on Jul 21, 2005
There is an Shell for it.. Not from UPX it self.
But it has all the features and more :).
http://fileforum.betanew...l/UPXShell/1112274943/1
sync reviewed v1.93 Beta on Apr 18, 2005
Awesome technology!
jaelanicu reviewed v1.93 Beta on Apr 8, 2005
Great! Very small compressed size.
I would rate it 5+ if they make their own shell or GUI.
negate101 reviewed v1.93 Beta on Mar 23, 2005
UPX is nice, though I am a PECompact user. UPX is a great tool, but the decompression feature is something I would prefer not be available. I understand why it is there though.
ecjs reviewed v1.93 Beta on Mar 2, 2005
It is awesome !
http://upx.sourceforge.net/#download
Just drag the .exe to compress to upx.exe and it does the work !