A Windows PE packer for executables (x64) with LZMA compression and with full TLS (Thread Local Storage) support.

windows packer reverse-engineering executable compressor upx lzma pe-format portable-executable pe-loader pe-file exe-packer manual-mapping manualmap upx-packer thread-local-storage pe-packer manual-mapper executable-packing executable-compressor

• Updated Oct 27, 2025
• C

Rekkrunchy with fixed pack ratio analysis

compression demoscene 64k 64k-intro exepack exepacker executable-compressor

• Updated Apr 6, 2024
• C++

LZPACK - CP/M-80 (8080 and Z80) executable compressor in ANSI C89

compression packer z80 compressor c89 cpm 8080 ansi-c cpm86 executable-packing cpm80 executable-compressor popcom lzpack stubasm

• Updated Sep 21, 2026
• C

lxLite OS/2 LX Executable Packer - Free Pascal (FPC) port

compression fpc os2 free-pascal os4 executable-compression executable-compressor lxlite

• Updated Oct 26, 2026
• Pascal