User mode file system library for windows with FUSE Wrapper

Linux LD_PRELOAD rootkit (x86 and x86_64 architectures)

opuntiaOS - an operating system targeting x86, ARM and RISC-V.

Termux upgrade version

ulexecve is a userland execve() implementation which helps you execute arbitrary ELF binaries on Linux from userland without the binaries ever having to touch storage. This is useful for red-teaming and anti-forensics purposes.

osFree - open source Operating System/2 clone, usermode parts.

A Rust-based userland which also adds compile-time assurances to seL4 development.

A lightweight, flexible, and safer alternative to chroot and/or Docker.

The main repository for the PBUI project

PoC designed to evade userland-hooking anti-virus.

A sandbox escape based on the proof-of-concept (CVE-2018-4087) by Rani Idan (Zimperium)

A very high-speed, configurable, and portable packet-crafting utility optimized for embedded devices

An ELF loader capable of manually loading ELF executables directly from memory into a new process, without the use of exec.

The Archive userland for app themes

GRE Tunnel for Windows

UserLand Frontier is a web application development platform that includes a scripting language, integrated object database, code editor, debugger, outliner, multi-threaded runtime and integrated HTTP server. It has been used as a weblog and website hosting service, local scripting environment and web services client and server.

📄 Store and read configuration values using files on disk.

TCP/IP network stack implementation in userland

A multiplatform userland driver for Contour Shuttle Devices

Such OS; Very Duck!