UPX (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.
Themida Alternatives for Windows
There are many alternatives to Themida for Windows if you are looking for a replacement. The best Windows alternative is UPX, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Themida and 12 are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Themida are VMProtect, FUPX, PELock and WinLicense.
Alternatives list
12 UPX alternatives
VMProtect Ultimate - All-In-One Solution For Software Licensing And Protection. VMProtect protects code by executing it on a virtual machine with non-standard architecture that makes it extremely difficult to analyze and crack the software.
Graphical interface for the UPX packer which offers easy access to all documented and undocumented UPX parameters without the need for command line usage.
+9
Software copy protection against reverse engineering with anti-cracking & anti-debugging techniques. Software license key system with time trial options.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
+9
WinLicense combines the same protection-level as Themida with the power of advanced license control, offering the most powerful and flexible technology that allows developers to securely distribute trial and registered versions of their applications.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
ASPack is an advanced solution created to provide Win32 EXE file packing and to protect them against non-professional reverse engineering.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
Cost / License
- Free
- Proprietary
Platforms
- Windows
K
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...
Cost / License
- Paid
- Proprietary
Platforms
- Windows
W- C
PECompact is an advanced Windows executable compressor for use by software developers and vendors. Executable packers compress executable modules (EXE, DLL, etc..) so that their physical size is considerably smaller.
Cost / License
- Paid
- Proprietary
Platforms
- Windows
A library for some loosely related Microsoft compression formats, CAB, CHM, HLP, LIT, KWAJ and SZDD.
Cost / License
- Free
- Open Source (GPL-2.0)
Platforms
- Linux
- Windows
- Mac
C
Poland
EU
UPX is a packer, not a protector