December 7, 2025

In Browser X86-64 Assembler Playground

x86-64 Playground is a web app for experimenting and learning x86-64 assembly.

The Playground web app provides an online code editor where you can write, compile, and share assembly code for a wide range of popular assemblers such as GNU As, Fasm and Nasm.

Unlike traditional online editors, this playground allows you to follow the execution of your program step by step, inspecting memory and registers of the running process from a GDB-like interface.

You can bring your own programs! Drag and drop into the app any x86-64-Linux static executable to run and debug it in the same sandboxed environment, without having to install anything.

https://x64.halb.it

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