UPX Alternatives

UPX is described as '(Ultimate Packer for eXecutables) achieves an excellent compression ratio and offers very fast decompression. Your executables suffer no memory overhead or other drawbacks for most of the formats supported, because of in-place decompression' and is a File Compressor in the file management category. There are more than 10 alternatives to UPX for a variety of platforms, including Windows, Linux, Online / Web-based, Android and iPhone. The best alternative is FileOptimizer, which is both free and Open Source. Other great apps like UPX are Appetize.io, ExEinfo PE, Themida and FUPX.

UPX alternatives are mainly File Compressors but may also be Android Emulators. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of UPX.

This page was last updated

UPX

Free • Open Source
File Compressor

Mac
Windows
Linux

UPX (Ultimate Packer for eXecutables) achieves an excellent compression ratio and offers very fast decompression. Your...

Learn more about UPX

FileOptimizer
Is this a good alternative?
Yes
No
Free • Open Source
File Compressor
Windows
Wine
42 alternatives to FileOptimizer
FileOptimizer is a lossless file size optimizer supporting AIR, APK, APNG APPX, BMP, CBZ, DOCX, DLL, EPUB, EXE, GIF, GZ, ICO, JAR, JPEG, MNG, MP3, MPP, PNG, PPTX, ODT, OGG, OGV, PDF, PUB, SCR, SWF, TIF, VSD, WEBP, XAP, XLSX, and ZIP file formats among others.
Suggest and vote on features
FileOptimizer Features
1. PortableFileOptimizer can be used from a USB stick or similar with no prior installation.
2. PDF compressionFileOptimizer can reduce the size of your PDF without losing quality
Lossless Compression
All in one
Drag and Drop
Appetize.io
Is this a good alternative?
Yes
No
Freemium • Proprietary
Android Emulator
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
29 alternatives to Appetize.io
Stream iOS Simulators & Android Emulators in the Browser.
Suggest and vote on features
Appetize.io Features
1. PortableAppetize.io can be used from a USB stick or similar with no prior installation.
2. LightweightAppetize.io consumes less device resources compared to similar apps.
Browser-based
Embedded tutorials
HTC Vive Support
Appetize.io vs UPX
pros, cons and recent comments
Guest
Why is it in alternatives? It does not pack executables.
Negative comment• ago

0
ExEinfo PE
Is this a good alternative?
Yes
No
Free • Proprietary
Windows
8 alternatives to ExEinfo PE
Packer, compressor detector / unpack info / internal exe tools.

Internal Tools and Ripper Menu :

Borland Delphi ( 2.0 - 7.0 ) Microsoft Visual C++ ver. 5,6,7,8.0 UPX exe/ dll 0.89.6 - 1.02 / 1.05 -3.03 -> Markus & Laszlo Aspack v2.12 -> Alexey Solodovnikov EXECrypto.

ExEinfo PE has no features, suggest some!

ExEinfo PE vs UPX
pros, cons and recent comments
Guest
Exeinfo PE detects the type of packer/compiler etc. used by an executable, but UPX actually "packs" the executable.
Negative comment• ago

-1
Themida
Is this a good alternative?
Yes
No
Paid • Proprietary
Windows
12 alternatives to Themida
Advanced Windows software protection system, developed for software developers who wish to protect their applications against advanced reverse engineering and software cracking.

Themida has no features, suggest some!
Add a screenshot

Themida vs UPX
pros, cons and recent comments
Guest
The main purpose (and intention) of upx is to compress files. The main purpose (and intention) of themida is to obfuscate files and to unnecessarily add a few MB (bloatware).
Negative comment• ago

-1
FUPX
Is this a good alternative?
Yes
No
Free • Proprietary
File Compressor
Windows
PortableApps.com
12 alternatives to FUPX
Graphical interface for the UPX packer which offers easy access to all documented and undocumented UPX parameters without the need for command line usage.
Suggest and vote on features
FUPX Features
1. PortableFUPX can be used from a USB stick or similar with no prior installation.
Graphical User Interface
Alienyze
Is this a good alternative?
Yes
No
Paid • Proprietary
Windows
8 alternatives to Alienyze
Alienyze is a software packer and protection solution for native Windows 32-bit executable files. Alienyze allows developers to easily protect their software aginest cracking and reverse engineering, while also providing additional features such as executable compression...

Alienyze has no features, suggest some!
ASPack
Is this a good alternative?
Yes
No
Paid • Proprietary
Windows
12 alternatives to ASPack
ASPack makes Windows programs and libraries smaller up to 70% (the compression ratio is higher than the ZIP standard by 10-20%), and decrease load times across networks, and download times from the internet.

ASPack has no features, suggest some!
LockBytes
Is this a good alternative?
Yes
No
Paid • Proprietary
Windows
25 alternatives to LockBytes
Easily licence and distribute executables on windows computers from the cloud without having to worry about end users sharing them without your permission.

LockBytes has no features, suggest some!
Add a screenshot
kkrunchy
Is this a good alternative?
Yes
No
Free • Proprietary
Windows
9 alternatives to kkrunchy
kkrunchy is a small exe packer primarily meant for 64k intros. It's relatively useless for anything else actually, because the depacker was relatively slow in older releases (about 1-2MB per second on my machine) and is dog slow in the newest version (about 90-120k per...

kkrunchy has no features, suggest some!
Add a screenshot
WWPack32
Is this a good alternative?
Yes
No
Freemium • Proprietary
File Compressor
Windows
12 alternatives to WWPack32
WWPack32 - Windows executable files compressor and protector. Compressed exe and dll files run exactly as before!. This program squeezes exe files and protects Win32 applications from cracking.

WWPack32 has no features, suggest some!

Showing 10 of 12 alternatives

FileOptimizer Features

Appetize.io Features

Appetize.io vs UPX

ExEinfo PE vs UPX

Themida vs UPX

FUPX Features