Servasm – Literate web server in x86 assembler

In plain words

Servasm is a minimal web server written entirely in x86_64 assembly language for Linux systems. It serves static files using a forking architecture where each request runs in a separate process, leveraging kernel functionality to keep the codebase simple at around 1,000 lines of commented assembly code. The project is presented as a literate program with full source code visible, though it is explicitly not intended for production use.

written from the facts on this page · September 2026

From the sources

Minimal x86_64 Linux-only file webserver written in assembly language. This page is literate program with all service source code. Project repository and build instructions . Warning: server is not intented for production use. It may and will wreck you stuff. Servasm is forking server, each request is processed in separate process. This is how it was done in Mesozoic Era (except we use sendfile(2) , which wasn't invented then). And this allows us to make things stupidly simple and take as much leverage from Kernel as possible. We aim for ~1kloc of assembly with comments and spaces. Then main process loops on accept(2) system call. For each request it fork(2) s main process and processes…from zarkzork.com

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