C++ Frameworks 2025: Which to Choose for Web, GUI, and Games

C++ in 2025: The Return of the King? Choosing a Framework for the Task

When it comes to performance, C++ remains a language that forgives no mistakes but tolerates no competitors. In 2025, against the backdrop of the AI boom, the Internet of Things, and high-load systems, C++ is experiencing a renaissance. But here's the paradox: choosing a framework for C++ is like choosing a weapon for a cyberpunk samurai. Make a mistake, and your code will turn into a sluggish nightmare.

In this article, we won't just list popular C++ frameworks. We'll examine them under a microscope: comparison of C++ frameworks for web, desktop, games, and microservices. You'll learn why Qt is still alive, whether you should fear Boost.Asio, and which C++ web framework outperforms Node.js by 10 times in speed. Let's go!

Selection Criteria: What to Look For in 2025

Before diving into the code, let's agree on a coordinate system. The best C++ framework is not an abstract concept, but a tool for a specific task. Here are 5 parameters we will use for comparison:

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• Performance: how fast the framework processes requests/renders frames.
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• Ecosystem: whether there are ready-made modules (databases, authorization, GUI widgets).
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• Learning curve: how much time it takes to write the first working prototype.
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• Modernity: support for C++20/23, coroutines, modules.
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• Community: number of GitHub stars, update frequency, availability of documentation.
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So, meet the main contenders for the title of C++ Framework of 2025.

1. Web Frameworks: Drogon vs Crow vs Pistache

Web development in C++ is no longer exotic. In 2025, a C++ web framework is used for APIs, microservices, and even full-stack applications. The three pillars of modern web development in C++ are Drogon, Crow, and Pistache.

Drogon: The Performance Monster

Drogon is arguably the most powerful C++ web framework today. It uses a reactor pattern based on epoll (Linux) and kqueue (macOS). It supports C++20 coroutines, WebSocket, JSON, SSL, and even an ORM.

Example of a simple REST API in Drogon:

#include <drogon/drogon.h>\nusing namespace drogon;\n\nint main() {\n    app().registerHandler("/hello",\n        [](const HttpRequestPtr& req,\n           std::function<void (const HttpResponsePtr&)> &&callback) {\n            Json::Value json;\n            json["message"] = "Hello, 2025!";\n            auto resp = HttpResponse::newHttpJsonResponse(json);\n            callback(resp);\n        });\n    app().addListener("0.0.0.0", 8080).run();\n    return 0;\n}\n

Pros: incredible speed (up to 1 million RPS on simple endpoints), active development, database support. Cons: complex configuration for beginners.

Crow: Lightweight and Fast

Crow is a microframework inspired by Python Flask. Ideal for microservices and prototypes. Minimalistic but powerful.

#include "crow.h"\n\nint main() {\n    crow::SimpleApp app;\n    CROW_ROUTE(app, "/")([](){\n        return "Hello, world!";\n    });\n    app.port(8080).multithreaded().run();\n}\n

Pros: very simple syntax, quick start. Cons: weak support for complex business logic, no built-in ORM.

Pistache: Elegance and REST

Pistache is an HTTP framework from the community that emphasizes clean C++ code and RESTful design. Great for building APIs.

#include <pistache/endpoint.h>\nusing namespace Pistache;\n\nclass HelloHandler : public Http::Handler {\npublic:\n    HTTP_PROTOTYPE(HelloHandler)\n    void onRequest(const Http::Request& request, Http::ResponseWriter *resp