Termux X11 add-on application
Hyperextensible Vim-based text editor
Emulator of x86-based machines based on PCem
Fast streaming XML parser written in C99 with >90% test coverage
A cross-platform library to access USB devices
Linux Userspace x86 Emulator targeted at ARM Linux devices
Original Xbox Emulator for Windows, macOS, and Linux
Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc
BizHawk is a multi-system emulator written in C#
DeSmuME is a Nintendo DS emulator
Hobby operating system, bootloader, kernel, drivers, C library
Game Boy and Game Boy Color emulator written in C
An educational software system of a tiny self-compiling C compiler
Dynamic Instrumentation Tool Platform
Tool to work with XML and HTML from Ruby
Apple 2 and Agat 7/9 emulator
An Open Source DOS emulator to run old DOS games
Versatile Commodore Emulator
Teo is an emulator of the Thomson TO8 microcomputer
PICSimLab is a realtime emulator for PIC, Arduino, STM32, ESP32, ...