Show HN: Mach – A modern C++20 web framework inspired by ASP.NET Core

Mach is a fast, lightweight web framework for building HTTP APIs in modern C++. It provides routing, controllers, request binding, validation, middleware, security utilities, configuration, logging, and more through a clean, type-safe API.

Windows

Download and run the latest Mach .msi installer.

To build Mach applications, you will need:

The Mach CLI also requires the Microsoft Visual C++ Redistributable.

sudo apt install ./mach-1.0.0-amd64.deb

Mach v1.0 supports Ubuntu with GCC.

To build Mach applications, install the required development tools:

sudo apt update sudo apt install build-essential cmake

See the Installation Guide for detailed installation instructions.

mach new hello-mach cd hello-mach

Build and run it:

mach run

A minimal Mach application looks like this:

#include <mach/mach.hpp>

int main() { mach::AppBuilder builder; auto app = builder.build();

app.mapGet("/", [] { return mach::ok("Hello from Mach!"); });

return app.run(); }

Features

Fast HTTP server built for modern C++

Minimal APIs and controllers

Route parameters and query parameters

JSON request binding and serialization

Declarative request validation

Middleware

CORS and CSRF protection

Centralized error handling

Application configuration

Built-in logging

CMake integration

Command-line tooling for creating, building, and running projects

Platforms

Platform Toolchain Support

Windows MSVC Supported

Ubuntu GCC Supported

Additional platforms and toolchains may be supported in future releases.

Full documentation, guides, tutorials, and the API reference are available at:

Mach is designed to provide high HTTP throughput while keeping its API simple and expressive.

See the benchmarks for results and methodology.