Best Open Source Windows Assemblers 2026

Assemblers for Windows

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Browse free open source Assemblers and projects for Windows below. Use the toggles on the left to filter open source Assemblers by OS, license, language, programming language, and project status.

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1

x64dbg

An open-source x64/x32 debugger for windows.

An open-source x64/x32 debugger for windows. Development is done on GitHub (https://github.com/x64dbg/x64dbg). Daily snapshots are uploaded here, snapshots for every commit can be found on http://releases.x64dbg.com

22 Reviews

Downloads: 11,020 This Week

Last Update: 2026-05-27
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2

FlexxCpu

Flexible and eXpandable Cpu simulation

A small simulation of an experimental customized Cpu called FlexxCpu. A virtual Cpu whose assembly instructions have been strongly influenced by old cpus architecture (8080, 6809, z80, 68k, etc...) Please support this project by donating to this fundraiser: ------------------------------------------- Give birth to new travel bicycles!!! https://gofund.me/2201d2a4 -------------------------------------------

Downloads: 0 This Week

Last Update: 2024-10-05
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3

Hex File Loader

A software for upload .hex files to ATMEGA328P and compile .asm files

Downloads: 0 This Week

Last Update: 2016-05-27
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4

MEDDAC

MEDDAC is the seeding point for designing a new approach to Operating System design itself. It is an Open Source project with roots in mainframe design and development the author began in 1979. Monitor Editor Disassembler Decompiler Assembler Compiler

Downloads: 0 This Week

Last Update: 2013-03-13
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