Why C++ Is Relevant Again for Web Development
In a world dominated by Python, JavaScript, and Go, C++ might seem like a "dinosaur" of web development. However, with growing demands for performance, low latency, and efficient memory usage, C++ is making a comeback in the web arena. Modern C++ frameworks enable the creation of high-load REST APIs, microservices, and real-time systems that outperform their Python or Node.js counterparts.
In this article, we'll explore the top 10 C++ frameworks for web development worth trying in 2025. We'll analyze their features, performance, and provide code examples.
1. Crow — Lightweight and Fast
Crow is a minimalist web framework inspired by Python Flask. It is ideal for creating simple REST APIs and microservices.
Features:
- Header-only — no library compilation required
- Support for routing, JSON, WebSocket
- Simple database integration
Code Example:
#include "crow.h"
int main() { crow::SimpleApp app;
// Define a route CROW_ROUTE(app, "/hello") ([](){ return "Hello, World!"; });
// Route with parameters CROW_ROUTE(app, "/user/<int>") ([](int user_id){ return crow::response("User ID: " + std::to_string(user_id)); });
app.port(8080).multithreaded().run();}Recommended for: Quick prototypes, microservices.
2. Drogon — Powerful and Asynchronous
Drogon is one of the most popular C++ web frameworks. It uses an asynchronous model based on epoll (Linux) and kqueue (macOS), ensuring high performance.
Features:
- Support for HTTP/1.1, HTTP/2, WebSocket
- Built-in ORM for database operations
- Support for JSON, Protobuf, sessions, authentication
Code Example:
#include <drogon/drogon.h>
int main() { // Create a server drogon::app().registerHandler("/hello", [](const drogon::HttpRequestPtr& req, std::function<void (const drogon::HttpResponsePtr &)> callback) { auto resp = drogon::HttpResponse::newHttpResponse(); resp->setBody("Hello from Drogon!"); callback(resp); });
// Run on port 8080 drogon::app().addListener("0.0.0.0", 8080).run();}Recommended for: High-load APIs, chat systems, streaming.
3. Pistache — For REST APIs
Pistache is a lightweight framework specializing in creating RESTful services. It is designed with a focus on security and simplicity.
Features:
- Support for HTTP/1.0 and HTTP/1.1
- Built-in JSON parser
- Asynchronous request handling
Code Example:
#include <pistache/endpoint.h>
using namespace Pistache;
class HelloHandler : public Http::Handler {public: HTTP_PROTOTYPE(HelloHandler) void onRequest(const Http::Request& request, Http::ResponseWriter writer) override { writer.send(Http::Code::Ok, "Hello, Pistache!"); }};
int main() { Http::listenAndServe<HelloHandler>("0.0.0.0:8080");}Recommended for: RESTful APIs, internal services.
4. Wt (Web Toolkit) — For Complex Interfaces
Wt is a unique framework that allows you to write web applications as if you were writing a desktop application in Qt. It automatically generates HTML, CSS, and JavaScript.
Features:
- Full support for JavaScript and AJAX
- Widgets, signals, and slots (like in Qt)