Actix Web

Actix Web is a powerful, pragmatic, and extremely fast Rust web framework, built on top of the Actix actor framework. Created by Nikolay Kim (fafhrd91), Actix Web has consistently ranked at or near the top of the TechEmpower web framework benchmarks, outperforming virtually all other web frameworks in the world in terms of requests per second, latency, and concurrent connections. The framework leverages Rust's zero-cost abstractions, fearless concurrency, and memory safety guarantees to deliver C-level performance with high-level ergonomics. Key features include: a type-safe, macro-free routing system (using the #[get], #[post], and other HTTP method attribute macros, or the programmatic App::service approach for dynamic routing), extractors (a powerful pattern where function parameters are automatically extracted from the request — Path for URL parameters, Query for query strings, Json for request bodies, Data for application state, and custom extractors), middleware support (for logging, authentication, CORS, compression, session management, and custom request/response processing), a powerful HTTP client (awc, Actix Web Client) for making outgoing HTTP requests, WebSocket support (both client and server side, with full-duplex communication), static file serving with directory listing, TLS and HTTP/2 support, multipart form handling for file uploads, server-sent events (SSE), testing utilities for unit and integration testing of HTTP handlers, graceful shutdown, and support for Unix domain sockets. The framework's actor model foundation (Actix) provides supervised, fault-tolerant concurrent state management, where long-running background tasks and shared state can be managed through message-passing actors rather than mutexes and locks. As of 2026, Actix Web has over 22,000 stars.