nwbintools is a machine code tool-chain containing an assembler and various related development tools. It will thus be similar to GNU's binutils, but no attempts are made to duplicate its functionality, organization, or interfaces. The assembler works on x86 ELF-based Linux and FreeBSD systems.
joeq is a Java 2 (JDK 1.3 and 1.4) compatible virtual machine. It is unique in that it is entirely implemented in Java, leading to greater reliability, portability, maintainability, and efficiency. It is also language-independent, so code from any supported language can be seamlessly compiled, linked, and executed dynamically.
shellforge enables you to write shellcode programs in C. It transforms C program code into shellcode that will run on a Linux/x86 system. It provides macros to substitute libc calls with direct system calls and a Python script to automate compilation, extraction, encoding, and tests.
h2incn tries to directly convert C/C++ headers to Nasm-style include files, and can be used in a makefile. It is useful if you want to use the same structures or external variable declarations in C and assembler code, and you don't want to use two separate files and update both each time you change something. It is written in a mix of C and C++ code. It currently works for simple files.
The Perl Dev Kit (PDK) provides essential tools for building and deploying Perl applications. PDK features cross-platform wrapping and application builders for various operating systems, plus a suite of tools to speed development time and improve code quality and consistency across teams.
MCU 8051 IDE is a fully featured integrated development enviroment for MCS-51 based microcontrollers. It consists of a compiler, an advanced text editor (with highlighting, validation, and completion), a simulator, a scientific calculator, a hex editor, and many other things. Currently, this program supports only assembly language and a few microcontrollers.
PopAsm is an assembler (an assembly language compiler) designed to support the syntaxes of TASM/MASM and NASM, gathering together the best features of each of them. It is intended that it will support all instructions from Intel compatible CPUs, including MMX, 3DNow!, and SSE extensions.