Side by side
Dhaedalida vs UPX
Both stand on executable packers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
Dhaedalida offers interactive and pipeline-based protection for native Windows binaries, with a free demo and paid perpetual licenses. Check the managed-code exclusion and T-Rex hardware requirement before choosing an edition.
Visit Dhaedalida Free plan LinuxMacWindows
UPX offers compression and inspection tools for a broad range of executable formats. It is not a security tool, and its Linux runtime behavior is worth considering before use.
Visit UPXThe facts
| Dhaedalida | UPX | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | Linux, Mac, Windows |
| Lowest paid plan | Basic — developer license: €119.25, paid once | Free or on request |
| Plans published | 5 | 1 |
| Maker | Not published | Not published |
| Website | dhaedalida.com | upx.github.io |
| On executable packers | #4 of 28 | #8 of 28 |
Dhaedalida: what it does well
- Free demo has no time limit or account requirement.
- Protection can be automated in build pipelines.
- Licenses cover unlimited protected products and copies.
- SDK bindings span multiple listed programming languages.
What to know first
- Targets native Windows PE files, not managed code.
- Demo omits the packer, string encryption and anti-analysis suite.
- T-Rex output requires AVX2 support on the target machine.
- Continued updates renew annually at listed additional costs.
UPX: what it does well
- Typically reduces program and DLL sizes by around 50%–70%.
- Lists, tests, and unpacks executables.
- Supports Windows, macOS, and Linux formats.
- Free under GPL v2 or later, with a commercial-use exception.
What to know first
- Does not add protection or encryption.
- Compressed Linux files may need more RAM or swap concurrently.
- Generic Linux format recreates the original in /tmp.
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